Highly robust ground moving target detection and relocation method for distributed satellites

作     者：Ying LIU Guisheng LIAO Zhengguang ZHOU 

作者机构：National Laboratory of Radar Signal ProcessingXidian UniversityXi’an 710071China Nanjing Research Institute of Electronics TechnologyNanjing 210013China 

出 版 物：《Frontiers of Electrical and Electronic Engineering in China》 (中国电气与电子工程前沿（英文版）)

年 卷 期：2008年第3卷第4期

页      面：425-434页

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.60472097) 

主　　题：distributed satellite ground moving target detection cost function image registration error optimal beam forming 

摘      要：The performance of ground moving target detection for distributed satellites will be affected signifi-cantly when there is an image registration error,clutter decorrelation and array *** this paper,a new approach to moving target detection and relocation is proposed based on multi-channel and multi-pixel adap-tive signal processing in an image ***,multi-channel and multi-pixel joint data are equated to a simple array *** that there is an image registration error,the real steering vector of the moving target can be estimated through a space projection *** optimal beam forming approach is used to cancel clutter,and at the same time the cross-track velocity of the mov-ing target can be determined by searching for the peak value of the cost *** moving target can then be relocated on the SAR *** simulation results indicate that this method has a good robustness to image registration error,clutter decorrelation and array *** detection performance and the estimation accuracy are significantly improved.