基于頻移的DPCA機(jī)載雷達(dá)雜波抑制技術(shù)
Ground clutter suppression for airborne radar using frequency shift based DPCA
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摘要: 該文采用雜波單元分解的方法分析了相位中心偏置天線(DPCA)對機(jī)載雷達(dá)主雜波的抑制性能,指出DPCA是一種簡單的時-空二維濾波器,并分析了當(dāng)主雜波中心頻率不為零時DPCA雜波抑制能力下降的原因。該文還提出了一種基于主雜波中心頻率頻移的DPCA處理方法。理論分析和仿真結(jié)果均表明該方法具有較好的雜波抑制能力,同時該方法結(jié)構(gòu)簡單,便于工程實現(xiàn)。
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關(guān)鍵詞:
- 機(jī)載雷達(dá); 地雜波; 頻移; DPCA; 雜波抑制
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. -
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]孫潔,機(jī)載雷達(dá)地雜波抑制技術(shù)研究,[碩士學(xué)位論文],成都,電子科技大學(xué),1999. -
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