레이다 소형 UAV에 장착 가능한 초소형 SAR 레이다

[위종민]

IAI가 ELM-2058 초경량 SAR 레이다를 개발했네요. 무기 2.5kg, 전력소비 40와트로 쿼드콥터 드론에 장착도 가능합니다. 대역폭은 X / L 밴드인데 저 정도 크기에 L밴드? 

A new dimension in tactical surveillance - ELM-2058 Ultra-Lightweight SAR - Breaking Defense

A new dimension in tactical surveillance - ELM-2058 Ultra-Lightweight SAR - Breaking Defense

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A new dimension in tactical surveillance – ELM-2058 Ultra-Lightweight SAR

From the battlefields of history to cutting-edge drone technology, explore how the ELM-2058 Ultralight SAR is revolutionizing tactical aerial intelligence.

By   Israel Aerospace Industrieson March 31, 2025 at 8:24 AM

presented by

Image courtesy of IAI.

The pursuit of effective situational awareness has been a key factor in maintaining security during times of peace and achieving battlefield success in times of war as long as history itself. But it wasn’t until the introduction of the hot air balloon as an intelligence gathering platform during the conflict between France and Austria in 1794 that this crucial endeavor entered the aerial dimension.

The new ability to observe and detect from the air drove the quest to see around the clock, and through clouds, smoke and other hindrances. But as a whole, these capabilities went largely unanswered until the creation of Synthetic Aperture Radar (SAR) by a team at the Goodyear Aircraft Company in Arizona.

SAR exploits the relative speed (Doppler shift) of objects in the radar beam relative to the moving antenna, performing a frequency analysis to create a large synthetic antenna aperture without the need for a large physical antenna structure. A Doppler image of the targeted area is processed to produce results that are similar, but not identical to that of optics.

Image courtesy of IAI.

Aerial reconnaissance specialists worldwide took notice of the potential for 24-hour, all-weather imaging capability and SAR became the focus of intense development effort. But it wasn’t until the advent of smaller, more powerful CPUs in the 1980’s that the availability of sufficient processing power finally enabled SAR to come into its own.

Today, SAR is able to produce astonishingly detailed aerial images and pick up features that even the highest resolution electro optic systems miss. As such, SAR capability is now an indispensable part of the modern ISR arsenal at the strategic and tactical levels.

A Center for SAR Excellence

Realizing SAR’s potential, IAI initiated ongoing R&D in the early 1980’s. Advances were made in both hardware and software, and today the company offers the industry’s most extensive range of high-performance systems, all of which benefit from its unique experience and capabilities, including highly evolved, proprietary processing techniques.

IAI’s SAR solutions cover a wide range of platforms and operational requirements, from space based strategic satellite reconnaissance, stand-off reconnaissance by manned and unmanned fixed and rotary wing aircraft, all the way through to the company’s latest developments, lightweight tactical systems designed for deployed from small UAVs and drones.

Image courtesy of IAI.

ELM-2058 Tactical SAR

The utility of drones on the modern battlefield is beyond question. These systems have proven to be of supreme value for situational awareness, targeting and attack, but their effectiveness in high intensity conflict is challenged by modern air defense systems. Size has proven to be a critical factor for survivability, with smaller, more stealthy platforms proving less susceptible to interception. But the capabilities of smaller drones are compromised by their restricted payload capacity.

IAI’s efforts to overcome this challenge are exemplified by the ELM-2058, an ultra-lightweight SAR radar that weighs only 2.5 kg and draws only forty watts. ELM-2058 leverages the latest electronic technologies to deliver powerful performance while minimizing size, weight, and power consumption. Literally able to be held in the palm of a hand, this cost-efficient, high performance system generates high resolution, close-range SAR images day/night and in all weather conditions, deployed from a drone or small VTOL.

Highly automated and with comprehensive onboard capabilities to support mission planning & monitoring, image processing, and data analysis & exploitation, ELM-2058 delivers detailed, real-time imagery to special forces and other military, paramilitary and civil operators in support of a broad range of mission profiles, including: target acquisition; border and strategic assets monitoring; counter terror; counter narcotics and smuggling; and area & infrastructure surveillance following natural disaster.

The radar can be supplied in either X or L Band configurations, the former maximizing resolution while the latter adding flexibility for diverse environments and weather conditions.

Synthetic Aperture Radar Drone: Ultra-Lightweight SAR Drone system

ELTA-ELI-2058-Tactical ISR Aerial System Ultra-lightweight SAR Integrated Drone System .pdf

939.96KB

ELI-2058 Tactical ISR Aerial SystemUltra-lightweight SAR Integrated Drone System

1. IAI
2.  Aerospace & Defense
3.  Air
4.  Airborne Radars
5.  ELI-2058 Tactical ISR Aerial System

ELI-2058 Tactical ISR Aerial System

Ultra-lightweight SAR Integrated Drone System

• Category:Defense
• Domains:Air Land
• Group:ELTA Systems

Highlights

• Turnkey tactical ISR system
• Delivers real-time high-resolution SAR Imagery for close range
• Imagery Exploitation:
• Automatic Exploitation and computer aided target detection
• ACD - Amplitude Change Detection
• CCD - Coherent Change Detection
• User friendly command and control workstation

ELTA's ELI-2058 represents a significant advancement in radar technology, providing essential intelligence capabilities for military operations. Specifically designed for drone deployment, this system delivers high-resolution Synthetic Aperture Radar (SAR) images around the clock, under any weather conditions. This capability makes it an indispensable tool for intelligence, surveillance, and reconnaissance missions, particularly for close-range operations. It allows forces to discern critical details otherwise obscured by limitations inherent in traditional optical observation methods. Furthermore, the ELI-2058's effectiveness is not compromised by adverse weather conditions or enemy camouflage techniques, offering a substantial advantage over conventional optical surveillance options. This enhancement in surveillance capability significantly increases operational awareness and effectiveness, ensuring a superior strategic advantage in the field.

The ELI-2058 comes with everything needed for a successful mission – from planning to surveillance, to analyzing images on the spot. Its built-in mission computer and compact communication system mean images and data can be sent quickly, without delay. This is vital for real-time decision-making in the field. The focus on size, weight, power, and cost (SWaP-C) efficiency makes it versatile for various missions, such as monitoring borders, identifying targets, counter-terrorism operations, detecting illegal drugs, and assessing damage after disasters.

The ELI-2058 is user-friendly control system backed by sophisticated detection features that ensure targets are quickly and accurately identified. With capabilities that includes Amplitude Change Detection (ACD) and Coherent Change Detection (CCD), it can spot changes in an area that might indicate a threat or an opportunity for action.

The ELI-2058 from IAI ELTA is more than just a radar system – it's an essential piece of technology that empowers military missions with clear terrain visualization and rapid, informed decision-making capabilities. Drawing on decades of combat excellence, IAI ELTA has designed the ELI-2058 to give military operators an edge, providing critical information that enables protection and paves the way for mission success. With this system, forces can stay a decisive step ahead in complex operational environments.

[백선호]

SAR는 레이다 플랫폼이 움직인 거리가 안테나 크기가 되는 원리이기 때문에 L-밴드도 쓸 수 있을 것입니다.

https://en.wikipedia.org/wiki/Synthetic-aperture_radar

The distance the SAR device travels over a target during the period when the target scene is illuminated creates the large synthetic antenna aperture (the size of the antenna).

[위종민]

아 SAR은 또 방식이 다르네요.