Volume 32 Issue 04
Apr.  2006
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Wang Pengbo, Zhou Yinqing, Chen Jie, et al. Multi-channel Chirp Scaling algorithm for high-resolution multi-channel antenna space-borne SAR imaging[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(04): 440-444. (in Chinese)
Citation: Wang Pengbo, Zhou Yinqing, Chen Jie, et al. Multi-channel Chirp Scaling algorithm for high-resolution multi-channel antenna space-borne SAR imaging[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(04): 440-444. (in Chinese)

Multi-channel Chirp Scaling algorithm for high-resolution multi-channel antenna space-borne SAR imaging

  • Received Date: 20 Apr 2005
  • Publish Date: 30 Apr 2006
  • Based on the analysis of the limitation that exists in the traditional imaging algorithms when processing the echo of high resolution multi-channel antenna space-borne SAR(Synthetic Aperture Radar), a novel MCCS(multi-channel Chirp Scaling algorithm) for high resolution multi-channel antenna space-borne SAR imaging is developed. The algorithm uses a filter banks to realize the conversion fromthe echo of high resolution multi-channel antenna space borne SAR to the echo of strip map SAR. When the filter banks are designed properly, the conversion is strictly equivalent. the ambiguity that caused by inadequately sampling can be completely avoided, and the dependence on DPC(displaced phase center) equivalent condition can be completely removed. But when using the traditional imaging algorithms, the DPC equivalent condition should be strictly satisfied. Then using the Chirp Scaling principle to accomplish imaging, and the precise focusing picture can be realized. Finally, the computer simulation showed the validity of the algorithm.

     

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  • [1] Curlander J C, McDonough R N. Synthetic aperture radar systems and signal processing[M].New York:John Wiley, 1991 [2] Heer M, Grafmueller B, Zahn R. A novel high resolution, wide swath SAR system[J]. Geoscience and Remote Sensing Symposium, 2001, 3:1013~1015 [3] 梁维斌. 多通道天线高分辨率星载SAR技术研究 . 北京:北京航空航天大学电子信息工程学院,2004 Liang Weibing. The studies of high resolution spaceborne SAR technique basedd on multiple phase centers antenna . BeJing:Beihang University, School of Electronic and Information Engineering, 2004(in Chinese) [4] 魏钟铨.合成孔径雷达卫星[M].北京:科学出版社, 2001.153~187 Wei Zhongquan. Synthetic aperture radar satellite[M]. Beijing:Science Publishing House, 2001.153~187(in Chinese) [5] 陈志愿,齐向阳,李建雄. 浅谈星载多相位中心方位向多波束SAR方位向非均匀采样信号的重构算法[J]. 电子与信息学报 , 2004, 26:195~201 Chen Zhiyuan, Qi Xiangyang, Li Jianxiong. Elementary introduction of the reconstruction of nonuniformly sampled signals in azimuth of displaced phase centres multi-beam in azimuth spaceboene synthetic aperture radar[J]. Journal of Electronics and Information Technology, 2004, 26:195~201(in Chinese) [6] Nohara T J. Derivation of a 3-channel DPCA/Monopulse radar using phased array[J]. IEEE National Telesystems Conference, 1994. 243~249 [7] Brown J L. Multi-channel sampling of low-pass signal[J]. IEEE Trans Circuits Syst,1981, 28:101~106 [8] Johansson H, Lowenborg P. Reconstruction of nonuniformly sampled band-limited signals by means of digital fractional delay filters[J]. IEEE Trans, 2002, 50:2757~2767 [9] Blum R S, Melvin W L, Wicks M C. An analysis of adaptive DPCA . IEEE Radar Conference, 1996. 303~308
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