Design and Experimental Verification of ISAR imaging System for Airborne Maritime Surveillance Radar

As the main task load of the airborne platform for sea detection, the airborne maritime surveillance radar system can monitor and track large-scale sea surface targets in all-weather, all-time, accurate and real-time. It can also classify and recognize sea surface targets through high-resolution ship target information provided by inverse synthetic aperture radar (ISAR), grasp the situation of sea surface targets and deal with dangers when necessary, and response to dangerous sea targets. Therefore, the research of airborne ISAR ship target imaging is very important. Firstly, the working principle of airborne ISAR system is summarized, and the key problems faced by airborne ISAR system are analyzed. Then, the design and analysis of airborne ISAR system are carried out from the aspects of system composition and function, work flow, signal processing and ISAR system performance. Finally, the test verification and typical test results of airborne ISAR system for maritime surveillance radar are given.