基于稀布阵综合脉冲孔径雷达的长时间相干积累方法
LONG-TIME COHERENT INTEGRATION BASED ON SPARSE-ARRAY SYNTHETIC IMPULSE AND APERTURE RADAR
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摘要: 本文研究了稀布阵综合脉冲孔径雷达的长时间相干积累特点及其存在的问题;提出了长时间相干积累中一种易于实现的运动补偿方法和基于时频分析的长时间相干积累方法;并给出了计算机模拟结果,结果表明SIAR雷达体制对微弱运动目标有较好的检测性能。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.
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Dorey J, Garnier G, Auvray G. RIAS, synthetic impulse and antenna radar. International Conference on Radar, Paris: 1989, 556-562.[2]保铮,张庆文.一种新型的米波雷达--综合脉冲与孔径雷达.现代雷达,1995, 17(1): 1-13.[3][3][4]陈伯孝.SIAR四维跟踪及其长相干积累等技术研究:[博士论文].西安:西安电子科技大学,1997.[5]孙晓兵.非平稳信号的时频分析方法及其应用:[博士论文].西安:西安电子科技大学,1994.[6]Kumar B, Carroll C. Performance of Wigner distribution function base integration methods. Opt. Eng., 1984, 23(6): 732-737.[7]陈伯孝,张守宏.基于相位编码的稀布阵综合脉冲孔径雷达的脉冲压缩性能分析.电子科学学刊,1998, 20(1): 50-55. -
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