基于频移的DPCA机载雷达杂波抑制技术
Ground clutter suppression for airborne radar using frequency shift based DPCA
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摘要: 该文采用杂波单元分解的方法分析了相位中心偏置天线(DPCA)对机载雷达主杂波的抑制性能,指出DPCA是一种简单的时-空二维滤波器,并分析了当主杂波中心频率不为零时DPCA杂波抑制能力下降的原因。该文还提出了一种基于主杂波中心频率频移的DPCA处理方法。理论分析和仿真结果均表明该方法具有较好的杂波抑制能力,同时该方法结构简单,便于工程实现。Abstract: This paper analyses the airborne radar ground clutter suppression abilitv of DPCA by decomposing the clutter zone into small celis, and points out that DPCA is a shnple tinic-space processor. This paper also analyses the reason that lowers the DPCA performancc and proposes a DPCA method based on clutter frequency shift. Theoretical analysis and simulation show that this method s performance is good and it is easy to implement.
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L.E. Brennan, Theory of adaptive radar, IEEE Trans. on AES., 1973, AES-9(2), 237-252.[2]P.G.Richardson, Analysis of the adaptive space time processing technique for airborne radar, IEE Proc-F, 1994, 141(4), 187-195.[3]M.I. Skolink, Radar Handbook, NewYork, McGram-Hill Book Co, 1990, 16.1 16.31.[4]孙洁,机载雷达地杂波抑制技术研究,[硕士学位论文],成都,电子科技大学,1999. -
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