Study on Ground Moving Target Indication of Multiple Input Multiple Output Space-borne SAR
Zhang Xiao-guang①② Liu Xiang-feng③ Fu Kun①
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Graduate School of Chinese Academy of Sciences, Beijing 100049, China) ③(China International Engineering Consulting Corporation, Beijing 100048, China)
Abstract：Multi-input multi-output spaceborne SAR transmits orthogonal coding signals with multiple antennas from different transmitting phase centers, and receives returns from different receiving phase centers to form multi-channel signals. It can increase the spatial freedom considerably, which gives advantages to detecting ground moving targets. This paper researches the ground moving targets detection technologies for multi-input multi-output spaceborne SAR with space-time adaptive signal processing. Considering the characteristics of the returns of the spaceborne SAR, in the basis of research on the space-frequency adaptive processing algorithm, the text adapts eigen-structure based space-frequency adaptive processing algorithm to suppress the clutter and completes finally the detection of the moving targets. Simulation results proves the validity of proposed algorithm.
2010, Vol. 32 
