基于稀布陣綜合脈沖孔徑雷達的長時間相干積累方法
LONG-TIME COHERENT INTEGRATION BASED ON SPARSE-ARRAY SYNTHETIC IMPULSE AND APERTURE RADAR
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摘要: 本文研究了稀布陣綜合脈沖孔徑雷達的長時間相干積累特點及其存在的問題;提出了長時間相干積累中一種易于實現(xiàn)的運動補償方法和基于時頻分析的長時間相干積累方法;并給出了計算機模擬結(jié)果,結(jié)果表明SIAR雷達體制對微弱運動目標(biāo)有較好的檢測性能。
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關(guān)鍵詞:
- 稀布陣; 綜合脈沖孔徑雷達; 運動補償; 時頻分析; 相干積累
Abstract: Sparse-array Synthetic Impulse and Aperture Radar (SIAR) can isotropically radiate so that the long-time coherent integration can be obtained. But there are some problems in the process. An effective method of the long-time coherent integration is presented, which includes simply implemented motion compensation and time-frequency analysis. The result shows that the novel radar (SIAR) system has better performance for weak target detection. -
Dorey J, Garnier G, Auvray G. RIAS, synthetic impulse and antenna radar. International Conference on Radar, Paris: 1989, 556-562.[2]保錚,張慶文.一種新型的米波雷達--綜合脈沖與孔徑雷達.現(xiàn)代雷達,1995, 17(1): 1-13.[3][3][4]陳伯孝.SIAR四維跟蹤及其長相干積累等技術(shù)研究:[博士論文].西安:西安電子科技大學(xué),1997.[5]孫曉兵.非平穩(wěn)信號的時頻分析方法及其應(yīng)用:[博士論文].西安:西安電子科技大學(xué),1994.[6]Kumar B, Carroll C. Performance of Wigner distribution function base integration methods. Opt. Eng., 1984, 23(6): 732-737.[7]陳伯孝,張守宏.基于相位編碼的稀布陣綜合脈沖孔徑雷達的脈沖壓縮性能分析.電子科學(xué)學(xué)刊,1998, 20(1): 50-55. -
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