Yu Wen-xian, Zhang Zeng-hui, Hu Wei-dong. STAP Method for Space Based Radar Based on Spectrum Registration with Non-Uniformed Frequency Samples[J]. Journal of Electronics & Information Technology, 2009, 31(2): 358-362. doi: 10.3724/SP.J.1146.2007.01244
Citation:
Yu Wen-xian, Zhang Zeng-hui, Hu Wei-dong. STAP Method for Space Based Radar Based on Spectrum Registration with Non-Uniformed Frequency Samples[J]. Journal of Electronics & Information Technology, 2009, 31(2): 358-362. doi: 10.3724/SP.J.1146.2007.01244
Yu Wen-xian, Zhang Zeng-hui, Hu Wei-dong. STAP Method for Space Based Radar Based on Spectrum Registration with Non-Uniformed Frequency Samples[J]. Journal of Electronics & Information Technology, 2009, 31(2): 358-362. doi: 10.3724/SP.J.1146.2007.01244
Citation:
Yu Wen-xian, Zhang Zeng-hui, Hu Wei-dong. STAP Method for Space Based Radar Based on Spectrum Registration with Non-Uniformed Frequency Samples[J]. Journal of Electronics & Information Technology, 2009, 31(2): 358-362. doi: 10.3724/SP.J.1146.2007.01244
Due to the earths rotation or non-sidelooking radar configuration, the spectrum of Space Based Radar (SBR) clutter varies with the range and shows non-stability. The non-stability of clutter will degrade Space Time Adaptive Processing (STAP) performance significantly and should be compensated. A new spectrum registration based method is proposed which uses non-uniformed discrete frequency sampling points. The mathematical model of the non-uniformed spectrum registration method is built. The choices of these non-uniformed discrete frequency samples and the estimate of clutter covariance matrix after compensation are also studied. Simulations show that the proposed spectrum registration method can compensate the non-stability effectively and achieve approximately optimal performance.
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