A Study on Sliding Spotlight Mode of Spaceborne SAR System

In the paper,different characteristics are provided between spotlight mode and sliding spotlight mode of spaceborne SAR by comparison.The system indexes of sliding spotlight mode are studied,especially antenna azimuth steering angle.At the same time,The realization method of the mode is presented,azimuth Doppler de-ambiguity,the requirement of azimuth steering angle,rotation center are analyzed respectively and the simulation results are given.The simulation results are applied to high resolution spaceborne...