An Azimuth Resample Method For Bistatic SAR Motion Compensation

Conference: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
06/07/2010 - 06/10/2010 at Aachen, Germany

Proceedings: EUSAR 2010

Pages: 4Language: englishTyp: PDF

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Qiu, Xiaolan; Han, Bin; Meng, Dadi; Hu, Donghui (Key Laboratory of Technology in Geo-spatial Information Processing and Application System, IECAS, China)
Ding, Chibiao (Institute of Electronics, Chinese Academy of Sciences (IECAS), China)

Motion compensation is an indispensable step for generating a high quality image in the airborne SAR system. In bistatic SAR, there are two separate platforms and their velocities cannot keep same all the time. So the echoes are transmitted and received at uniform positions, respectively, which deteriorate the imaging results. In this paper, an azimuth resample method for compensating the velocity variance along the flying direction is promoted, and the difference of azimuth resample between monostatic SAR and bistatic SAR is pointed out. Finally, simulated results show the validity of the method.