FM-CW SAR距离-多普勒成像算法研究

耿淑敏; 江志红; 程翥; 皇甫堪

doi:10.3724/SP.J.1146.2006.00415

FM-CW SAR距离-多普勒成像算法研究

doi: 10.3724/SP.J.1146.2006.00415

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出版历程
- 收稿日期: 2006-04-03
- 修回日期: 2006-09-28
- 刊出日期: 2007-10-19

Study on Imaging Algorithm of FM-CW SAR

摘要

摘要: 调频连续波(FM-CW)合成孔径雷达因其体积小、重量轻、低成本及分辨率高等特点越来越受到关注。该文详细推导了调频连续波(FM-CW)体制下去调频FM-CW SAR信号模型，对FM-CW SAR 的特有问题如RVP，斜置，距离走动现象进行了深入研究，提出了改进的去调频FM-CW SAR的距离-多普勒成像算法。通过理论推导及仿真实验，验证了模型和算法的可行性与正确性。
- SAR;FM-CW;距离-多普勒成像算法;RVP;斜置
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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参考文献(1)

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