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| The Nonlinear Chirp Scaling Algorithm for Bistatic SAR Imaging |
| Wang Feng①; Tang Zi-yue①; Zhu Zhen-bo②; Zhang Ya-biao② |
| ①Department of Information & Command Automation, Air Force Radar Academy, Wuhan 430029, China; ②Naval University of Engineering, Wuhan 430033, China |
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Abstract To the big squint mode of bistatic SAR system，based on the echo model of bistatic SAR and range equation in RD area, properly to with the NCS algorithm of conventional SAR, this paper proposes NCS algorithm for squint-looking bistatic SAR, and carefully analysis two key problems in this algorithm: azimuth ambiguity of Doppler center and imaging position in range direction. Finally, it is proved to be valid by the simulation results.
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Received: 27 February 2006
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2007, Vol. 29 
