An algorithm based on spectrum shift for improving range resolution using GEO spaceborne/airborne multistatic SAR

被引：0
作者：
Zheng J.-B. [1 ,2 ]
Song H.-J. [1 ]
Shang X.-Q. [1 ,2 ]
Wu Y. [1 ,2 ]
机构：
[1] Institute of Electronics, Chinese Academy of Sciences
[2] Graduate University of Chinese Academy of Sciences
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2010年 / 32卷 / 08期
关键词：
GEO; Multistatic SAR; Range resolution; Spectrum shift;
D O I：
10.3724/SP.J.1146.2009.01136
中图分类号：
TN95 [雷达];
学科分类号：
080904 ; 0810 ; 081001 ; 081002 ; 081105 ; 0825 ;
摘要：
In this paper, the GEO spaceborne/airborne multistatic SAR geometry model with one fixed transmitter and multiple receivers is proposed, and the spectrum shift between different receiver echoes is derived. Based on the spectrum shift, a new algorithm for improving range resolution of this model by composing spectrums of different receivers is proposed. The overlapped interference term, which is induced during spectrum composing, and its influence on range resolution, is analyzed in detail, and a method by weight filtering is provided to remove the interference term. Finally, simulation is employed to test validity of the algorithm.
引用
收藏
页码：1863 / 1868
页数：5
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