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<A NAME="[문서의 처음]"></A><P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";font-style:"italic";line-height:26px;text-align:justify;'>그동안 저도 실험 세팅하느라 바빠서...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";font-style:"italic";line-height:26px;text-align:justify;'>답변을 해준다고 해놓고 이렇게 미루게 됐네요...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";font-style:"italic";line-height:26px;text-align:justify;'>약속은 약속이니깐....</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>"물리적으로 컨볼루션(Convolution)은...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> 충격응답함수 h(t)로 표현되는 임의의 선형계에...</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> 입력신호 f(t)가 입력되었을 때, </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> 출력신호 g(t)사이와의 관계를 나타낸다." </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><-- 컨볼루션에 대한 위 설명은 굉장히 훌륭한 것이라고 생각됩니다...</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>여기에는 세가지 함수가 있습니다. </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>첫째는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff0000";line-height:26px;text-align:justify;'>입력 신호</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> <A NAME="#4bf475b0"></A>
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이고요...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>둘째는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>시스템의 특성</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>을 나타내는 <A NAME="#4bf475b1"></A>
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가 있고요...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>셋째는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#3366ff";line-height:26px;text-align:justify;'>출력 신호</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> <A NAME="#4bf475b2"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="34" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g(t)">
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가 있습니다....</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이 세 함수의 관계는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4bf475b3"></A>
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<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(1)</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN>( </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff0000";line-height:26px;text-align:justify;'>입력 신호</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000080";font-weight:"bold";line-height:26px;text-align:justify;'>*</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>시스템 특성</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> = </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#3366ff";line-height:26px;text-align:justify;'>출력 신호</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> )</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>라는 것입니다. 여기서 “<A NAME="#4bf475b4"></A>
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”는 컨볼루션 연산자를 나타내며...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>다음과 같이 정의 됩니다....</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> <A NAME="#4bf475b5"></A>
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<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(2)</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이것은 신호처리를 전공한 사람들이라면...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>아주 익숙한 내용일 것입니다....</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>예를 들어 컨덴서와 인덕터, 저항 등으로 꾸며진...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>복잡한 회로가 있다고 합시다...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이 회로는 하나의 입력 단자와 하나의 출력 단자를 가지고 있습니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이때 이러한 회로 전체를 하나의 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>시스템</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이라고 부를 수 있습니다....</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>우리가 보통 접할 수 있는 물리적 시스템의 특성은 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>대부분</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> </SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>위에 나타낸 컨볼루션 적분으로 묘사되어질 수 있습니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>여기서 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>대부분</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이라는 말을 사용한 이유는...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>컨볼루션으로 표현할 수 없는 시스템도 있다는 말이겠지요?</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>컨볼루션으로 입출력 관계를 묘사할 수 있는 시스템은...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>다음 두 가지 조건을 만족해야 합니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>첫째는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>선형 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>시스템(</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>linear</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> system)이어야 하고요...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>둘째는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>시불변</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>(</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>time invariant </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>혹은 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>shift invariant</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>) 시스템이어야 합니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이 두 가지 용어에 대해 먼저 설명을 하겠습니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>첫째, </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>선형</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이라는 말은 이런 것입니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>입력 신호 <A NAME="#4c505547"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="41" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="f_{ 1 } (t)">
</OBJECT>
의 출력이 <A NAME="#4c505548"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="40" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g_{ 1 } (t)">
</OBJECT>
이고,</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>또 다른 입력 신호 <A NAME="#4c505549"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="41" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="f_{ 2 } (t)">
</OBJECT>
의 출력이 <A NAME="#4c50554a"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="40" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g_{ 2 } (t)">
</OBJECT>
일 때...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><A NAME="#4c50554b"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="128" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="Af_{ 1 } (t)+B`f_{ 2 } (t)">
</OBJECT>
의 입력 신호에 대해 그 출력이...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><A NAME="#4c50554c"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="127" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="A`g_{ 1 } (t)+B`g_{ 2 } (t)">
</OBJECT>
로 나타나는 경우...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이런 시스템을 선형 시스템이라고 합니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>위 관계를 만족하는 시스템, 즉 선형 시스템은...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>수학적으로 다음과 같이 묘사될 수 있답니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c50554d"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="199" HEIGHT="45" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g(t)= int from { - INF } to { INF } { h(t,` tau )f( tau ) } d tau ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(3)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>여기서 피적분 함수에 들어있는 <A NAME="#4c50554e"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="52" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t, tau )">
</OBJECT>
를...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>impulse response function(충격응답함수)</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>라고 합니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>음... 선형시스템의 수학적 표현이 왜 식 (3)과 같은지...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>또 설명을 해야겠네요...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이제부터 시스템과 입출력 함수와의 관계를 이렇게 나타냅시다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c50554f"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="117" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g(t)=S left { f(t) right } ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(4)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>여기서 <A NAME="#4c505550"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="34" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="S left { right } ">
</OBJECT>
는 시스템에 의한 변환을 나타냅니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>그리고 입력 함수 <A NAME="#4c505551"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="35" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="f(t)">
</OBJECT>
를 델타 함수의 선형 결합으로 표현하면...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505552"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="210" HEIGHT="45" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="f(t)= int from { - INF } to { INF } { delta (t- tau )f( tau )d tau } ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(5)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>와 같이 됩니다... 여기서 <A NAME="#4c505553"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="9" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" tau ">
</OBJECT>
는 적분 변수입니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>즉 위치가 각기 다른 델타 함수들이 무한히 더해져 있는 꼴...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>즉 선형 결합된 형태입니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이 함수를 시스템에 입력하면...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505554"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="255" HEIGHT="150" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="S left { f(t) right } &=S left { int from { - INF } to { INF } { delta (t- tau )f( tau )d tau } right } #&= int from { - INF } to { INF } { S left { delta (t- tau ) right } f( tau )d tau } #&= int from { - INF } to { INF } { h(t, tau )f( tau )d tau } ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(6)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN>단, <A NAME="#4c505555"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="163" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t,` tau ) EQUIV S left { delta (t- tau ) right } ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(7)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>식 (6)에서 변환 <A NAME="#4c50557b"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="34" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="S left { right } ">
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가 적분 안으로 들어가는 이유는....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이 시스템이 선형 시스템이기 때문이라는 것 알 수 있겠지요?</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>자! 여기서 <A NAME="#4c505557"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="53" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t,` tau )">
</OBJECT>
를 impulse response 라고 부르는...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이유가 나타납니다. (7)식의 우변을 보면 <A NAME="#4c505558"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="53" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t,` tau )">
</OBJECT>
는...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>델타 함수, 즉 <A NAME="#4c505559"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="9" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" tau ">
</OBJECT>
라는 시간에 피크가 되는 임펄스에 대해...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>시스템이 어떻게 응답하는 지를 나타내는 함수입니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>따라서 <A NAME="#4c50555a"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="54" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t,`4)">
</OBJECT>
를 물리적으로 해석할 때 이렇게 하면 됩니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>4초 후 피크가 나타나는 임펄스의 입력에 대한...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>시스템의 출력함수가 바로 <A NAME="#4c50555c"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="54" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t,`4)">
</OBJECT>
라는 것이지요...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이렇게 선형 시스템의 임펄스 응답함수는 수학적으로...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>2개의 변수 즉 <A NAME="#4c50555e"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="7" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="t">
</OBJECT>
와 <A NAME="#4c50555f"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="9" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" tau ">
</OBJECT>
의 함수가 됩니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>그런데 실제 물리적 상황에서 impulse response function은...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>좀더 간단한 형태가 됩니다. 그것이 바로 시불변 시스템입니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>둘째, </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>시불변</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> 시스템.</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>전자 회로를 예로 들어봅시다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>전자 회로는 물리적으로 만들어진 장치입니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>그래서 어제 입력한 신호와 똑같은 신호를...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>오늘 다시 입력해 보았다면...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>어제 얻었던 출력과 같은 출력 신호를 오늘도 보게 됩니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>당연하겠지요? 수학적으로 기술하자면...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505560"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="156" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t,` tau )=h(t- tau ,0)">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(8)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>요렇게 된다는 말입니다... 즉, <A NAME="#4c505561"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="9" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" tau ">
</OBJECT>
라는 시각에 들어온 임펄스에 대한...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>응답은 <A NAME="#4c505562"></A>
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<PARAM NAME="IEHwp97Script" VALUE="0">
</OBJECT>
초에 들어온 임펄스에 대한 응답함수를 <A NAME="#4c505563"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="9" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" tau ">
</OBJECT>
만큼 shift 시키면...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>얻을 수 있다는 것이지요. 이런 시스템을 시불변 시스템이라고 합니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>(8)식에 의해 충격응답함수는 간단히 <A NAME="#4c505564"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="65" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t- tau )">
</OBJECT>
로 쓰여질 수 있습니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>결론적으로 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>선형 시불변</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> 시스템에서 입출력 관계는...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505565"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="213" HEIGHT="45" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g(t)= int from { - INF } to { INF } { h(t- tau )`f( tau )d tau } ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(9)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>로 나타낼 수 있고, 이러한 적분을 컨볼루션이라고 부릅니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>여기서 <A NAME="#4c505567"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="35" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="f(t)">
</OBJECT>
는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>입력</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>, <A NAME="#4c505568"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="34" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g(t)">
</OBJECT>
는 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>출력</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>, 그리고 <A NAME="#4c505566"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="37" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h(t)">
</OBJECT>
가 바로...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>시스템</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>의 특성을 나타내는 함수가 됩니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>참고로 선형 대수를 배웠다면, 입출력에 대한 적분 표현이...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>행렬에 의한 선형 변환을 무한 차원으로 확장한 것과 같다는 것을...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>곧 알 수 있을 것입니다...예를 들면...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505569"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="210" HEIGHT="61" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" left ( matrix { g_{ 1 } # g_{ 2 } # g_{ 3 } } right ) = left ( matrix { h_{ 11 } & h_{ 12 } & h_{ 13 } # h_{ 21 } & h_{ 22 } & h_{ 23 } # h_{ 31 } & h_{ 32 } & h_{ 33 } } right ) `` left ( matrix { f_{ 1 } # f_{ 2 } # f_{ 3 } } right ) ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(10)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이런 식은 행렬 <A NAME="#4c50556d"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="14" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" bold { h } ">
</OBJECT>
에 의해 벡터 <A NAME="#4c50556e"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="15" HEIGHT="22" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" vec { f } `````">
</OBJECT>
가 벡터 <A NAME="#4c50556f"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="15" HEIGHT="22" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" vec { `g } `````">
</OBJECT>
로 ...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>선형 변환되는 과정을 나타내는데, 이렇게도 쓸 수 있습니다. </SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505570"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="100" HEIGHT="46" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g_{ i } = sum from { j=1 } to { 3 } { h_{ ij } ```f_{ j } } ">
</OBJECT>
<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(11)</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>벡터의 차원이 무한대가 되는 경우...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>벡터는 1변수 함수로 즉, <A NAME="#4c505571"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="70" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="g_{ i } ``` rarrow ```g(t)">
</OBJECT>
, <A NAME="#4c505572"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="70" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="f_{ j } ``` rarrow f( tau )">
</OBJECT>
가 되고...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>행렬은 2변수 함수가 되어 <A NAME="#4c505573"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="92" HEIGHT="21" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE="h_{ ij } ``` rarrow h(t,` tau )">
</OBJECT>
로 바뀝니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>그리고 합(<A NAME="#4c505574"></A>
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<PARAM NAME="IEHwp97Script" VALUE=" Sigma ">
</OBJECT>
)은 적분이 되어 <A NAME="#4c505575"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="106" HEIGHT="46" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
<PARAM NAME="IEHwp97Script" VALUE=" Sigma _{ j } = int from { } to { } { ...`````d tau } ">
</OBJECT>
가 됩니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>따라서 (11) 식의 무한차원 확장은 식 (3)과 같이 됩니다...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>덧붙여 말하자면 </SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#ff00ff";line-height:26px;text-align:justify;'>선형 시불변</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> 시스템에서의 신호 해석은...</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>시간 도메인에서보다는 주파수 도메인에서 주로 하게 됩니다....</SPAN>
</P>
<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>시간 도메인에서의 컨볼루션 연산은....</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>주파수 도메인에서 단순 곱하기 연산으로 바뀌어진답니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이렇게 말이죠...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><SPAN style='HWP-TAB:1;'> </SPAN><A NAME="#4c505576"></A>
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<PARAM NAME="IEHwp97Script" VALUE="g(t)&=f(t)*h(t)`````#& udarrow #``G(f)&=F(f) CDOT H(f)">
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<SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN><SPAN style='HWP-TAB:1;'> </SPAN>(12)</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'> </SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>여기서 대, 소문자는 서로 푸리어 변환 관계를 나타냅니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>특히 충격응답함수 <A NAME="#4c505577"></A>
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의 푸리어 변환 <A NAME="#4c505578"></A>
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를....</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#0000ff";line-height:26px;text-align:justify;'>전달 함수(transfer function)</SPAN><SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>라고 부른답니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>대부분의 전자부품은 그 소자의 스펙을 나타낼 때...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>전달 함수를 그래프로 그려서 표시해 준답니다....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>전달 함수의 물리적 의미는 다음과 같습니다....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>선형 시불변 시스템의 경우 주파수 <A NAME="#4c505579"></A>
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의 사인파(또는 코사인파)가...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>입력되는 경우 출력은 반드시 같은 주파수의 사인파형 신호가 나옵니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>다만 출력 신호의 진폭과 위상만이 달라집니다....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이것이 선형 시스템의 특징이며, 비선형 시스템의 경우...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>입력 주파수와 다른 주파수의 신호가 나타날 수 있답니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>어쨌든 선형 시불변 시스템에서 전달 함수의 물리적 의미는...</SPAN>
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<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>주파수 <A NAME="#4c50557a"></A>
<OBJECT CLASSID="CLSID:8f2aa5c5-8c9c-11d3-8ac6-00a024cd2088" WIDTH="12" HEIGHT="18" ALIGN="absmiddle" CODEBASE="HTTP://WWW.HAANSOFT.COM/AnyEq/HwpEQ5X.cab" allowNetworking='internal' allowScriptAccess='sameDomain' type='application/x-shockwave-flash'>
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의 입력 신호에 대해 출력 신호가 가지는 이득(gain) 및...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>위상(phase) 변화를 나타내는 값입니다....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>이득과 위상을 나타내려면 복소수가 쓰여져야 겠지요?</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>그래서 충격 응답함수가 실함수인 반면, 그 푸리어 변환인</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>전달함수는 일반적으로 복소수로 나타납니다....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>컨볼루션 적분이 나타나는 물리적 상황은 아주 많다고 생각됩니다...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>전자 회로에 의한 입출력 뿐 아니라...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>홀로그램을 해석하는 파동 광학 또는 푸리에 광학에서는...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>2차원 컨볼루션 적분이 등장하고요....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>원자의 에너지 준위를 유한한 선폭의 레이저로 관측할 때....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>신호의 모양은 에너지 준위를 나타내는 함수와...</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>레이저 선폭을 나타내는 함수의 컨볼루션으로 표시된답니다....</SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'><BR></SPAN>
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<P STYLE='font-family:"굴림";font-size:16px;color:"#000000";text-align:justify;line-height:26px;text-indent:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;'>
<SPAN STYLE='font-family:"굴림";font-size:16px;color:"#000000";line-height:26px;text-align:justify;'>설명이 너무 장황했네요...</SPAN>
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</P>
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