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| 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) |
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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.
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Received: 26 June 2009
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Corresponding Authors:
Zhang Xiao-guang
E-mail: zhangxg@mail.ie.ac.cn
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2010, Vol. 32 
