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Study on the Three Channels SAR-GMTI System with the Slant-Placed Antennae |
Li Ya-chao; Li Xiao-ming; Xing Meng-dao; Bao Zheng |
National Key Lab of Radar Signal Processing, Xidian University, Xi’an 710071, China |
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Abstract This paper proposes a new system based on DPCA technology for the detection and position of moving target, namely three antennae are placed at a slant angle along airplane flying detection. The echo model of moving target is established based on three channels with the slant-placed antennae in terms of the equivalent phase center principle. The analysis of the detection of moving target, MVD and blind velocity relative to the slant-placed antenna is given and the improved DPCA technology is presented for the detection, velocity meansure and position. Finally, the simulated data confirm this new system and the improved DPCA technology.
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Received: 12 November 2007
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