A target location method for HBFL-SAR

High-dynamic bistatic forward-looking synthetic aperture radar(HBFL-SAR) is the application of bistatic forward-looking synthetic aperture radar to high dynamic radar platform, which is a new and special imaging mode. This paper establishes the geometry and the echo model under high dynamic conditions according to the moving feature of HBFL-SAR. And then a target location method based on the Newton iteration method is presented. The simulation results of ground point-targets demonstrate the effectiveness of the proposed location method. Furthermore, this method is applied to locating ship target on the sea, only part echo data is used at the price of reducing the azimuth resolution to improve the computational efficiency. The validity of the method is further indicated by the ship target simulation.