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Study on Imaging Algorithm of FM-CW SAR |
Geng Shu-min; Jiang Zhi-hong; Cheng Zhu; Huangfu Kan |
College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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Abstract There is a growing interest in the Frequency Modulated Continuous Wave (FM-CW) SAR for its small cubage, light weight, cost-effective and high resolution. In this paper, the principle of the de-chirped FM-CW SAR is analyzed in detail, the phenomena, for example, Residual Visual Phase (RVP), Slope, range walk are discussed deeply, and the improved range Doppler imaging algorithm for the de-chirped FM-CW SAR is presented. The deduction and the simulation prove the algorithm is feasible and correct.
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Received: 03 April 2006
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