Synthetic Aperture Radar - SAR

Find Synthetic Aperture Radar manufacturers and suppliers of SAR, ISAR (Inverse Synthetic Radar) and InSAR (Inferometric) for unmanned systems, drones, UAV, UAS & RPAS

SAR for Unmanned Systems

Synthetic aperture radar (SAR) uses radio or microwave pulses to capture 2D or 3D images of landscapes and other targets with finer resolution than conventional radar. The aperture of a radar antenna usually relates to its size; with SAR, the synthetic aperture refers to the distance that the SAR device moves during the time that the radar pulse is emitted and reflected. More distant objects therefore provide greater apertures, allowing for constant spatial resolution.

Synthetic Aperture Radar by IMSAR
Synthetic Aperture Radar by IMSAR

Inverse Synthetic Aperture Radar – ISAR

Additional remote sensing techniques involving SAR include inverse SAR (ISAR), in which the aperture is created by the movement of the target rather than the sensor. ISAR can be used to detect moving targets such as aircraft and ships.

Inferometric SAR – InSAR

Inferometric SAR (InSAR) uses multiple images of a target captured at different times to monitor changes in an area over time. It is often used for infrastructure and environmental monitoring.

SAR provides a number of advantages over other imaging technologies. It can operate on frequencies that allow signals to not be attenuated by weather conditions, and can also operate during the day and at night. SAR is also good at detecting metal objects not easily picked up by optical or thermal sensors, making it ideal for spotting targets such as vehicles and vessels.

Drone SAR Imaging

Low-SWaP (size, weight and power) SAR systems have been developed that are suitable for integration with UAVs (unmanned aerial vehicles). Drone SAR imaging is used for a variety of applications, including geology and mineral exploration, battlefield reconnaissance and intelligence, and oil spill monitoring.

Synthetic Aperture Radar (SAR): Articles
SAR/MTI Radar for Common Operating Picture in UAV Operations Feb 15, 2021
IMSAR Develops High-Performance Synthetic Aperture Radars for UAVs Oct 20, 2020
Fixed-Wing UAV Incorporates Cloud-Penetrating SAR Oct 10, 2020
SAR Imaging System Integrated into Long-Endurance Hybrid Multirotor UAS Aug 17, 2020
Canadian Armed Forces UAS Equipped with PicoSAR Radar May 30, 2019
US Marine Corps Selects SAR Payload for Blackjack Tactical UAS Apr 9, 2019
High-Resolution SAR Imagery Captured with Small UAS Feb 25, 2019
Synthetic Aperture Radar Payload Integrated with Aerosonde sUAS Feb 19, 2019