一种稳健的机载前视阵雷达杂波谱补偿方法

J4 ›› 2009, Vol. 36 ›› Issue (4): 633-638.

一种稳健的机载前视阵雷达杂波谱补偿方法

李明;廖桂生;曲毅;朱圣棋

(西安电子科技大学雷达信号处理重点实验室，陕西西安 710071)

收稿日期:2008-08-05 出版日期:2009-08-20 发布日期:2009-09-28
通讯作者: 李明
基金资助:
国家自然科学基金资助(60736009)

Robust clutter spectrum compensation algorithm for forward looking airborne radar

LI Ming;LIAO Gui-sheng;QU Yi;ZHU Sheng-qi

(Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071， China)

Received:2008-08-05 Online:2009-08-20 Published:2009-09-28
Contact: LI Ming

摘要/Abstract

摘要：

针对空间角频移前视阵杂波谱补偿方法将参考距离单元的杂波谱旁瓣抬高，导致旁瓣区动目标检测性能下降的缺点，提出了一种改进的空间角频移方法．先对各个距离单元回波进行多普勒频率补偿，然后再进行空间角频移．仿真实验结果表明，本方法在旁瓣区比空间角频移方法有3~5dB的性能改善，并且在雷达回波存在误差的情况下仍然能够保持好的性能．

关键词: 前视阵雷达, 杂波谱, 空间角频移, 多普勒补偿

Abstract:

In this paper, a new approach to spatial angle frequency shifting spectrum compensation for forward looking radar is proposed. The algorithm compensates the clutter Doppler frequency for the range cell before using spatial angle frequency shifting, which overcomes the problem of decreasing moving target detection performance, caused by the spatial angle frequency shifting algorithm to enhance the sidelobe of the reference range clutter spectrum. Experimental results show that the improved algorithm can obtain obviously better performance than spatial angle frequency shifting, without performance loss under radar clutter with some uncertain errors.

Key words: forward looking radar, clutter spectrum, spatial angle frequency shifting, Doppler compensation

中图分类号:

TN957

李明;廖桂生;曲毅;朱圣棋. 一种稳健的机载前视阵雷达杂波谱补偿方法[J]. J4, 2009, 36(4): 633-638.

LI Ming;LIAO Gui-sheng;QU Yi;ZHU Sheng-qi. Robust clutter spectrum compensation algorithm for forward looking airborne radar[J]. J4, 2009, 36(4): 633-638.

参考文献

［1］Brenna L E, Reed I S. Theory of Adaptiveradar［J］. IEEE Trans on AES, 1973, 9(2): 237-252.
［2］王永良, 彭应宁. 空时自适应信号处理［M］. 北京: 清华大学出版社, 2000: 133-159.
［3］刘聪锋, 廖桂生. 有效稳健STAP GMTI算法FAGATA［J］. 西安电子科技大学学报, 2008, 35(3): 421-426.
Liu Congfeng, Liao Guisheng. Efficient Robust STAP GMTI Algorithm FAGATA［J］. Journal of Xidian University, 2008, 35(3): 421-426.
［4］Borsari G K. Mitigating Effects on STAP Processing Caused By an Inclined Array［C］//Proc of the IEEE National Radar Conf. Dallas: IEEE, 1998: 135-140.
［5］Lapierre F D, Droogenbroeck M V, Verly J G. New Methods for Handling the Range Dependence of the Clutter Spectrum in Non-sidelooking Monostatic STAP Radars［C］//ICASSP. Hong Kong: ICASSP, 2003: 73-76.
［6］Zatman M A.The Properties of Adaptive Algorithm with Time Varying Weighs［C］//Proc of IEEE Sensor Array and Multichannel Signal Processing Workshop. Cambridge: IEEE, 2000: 82-86.
［7］王万林. 非均匀环境下的相控阵机载雷达STAP研究［D］. 西安：西安电子科技大学, 2004: 93-100.
Wang Wanlin. Study on STAP for Phased Array Airborne Radar in Nonhomogeneous Environment［D］. Xi'an: Doctoral Dissertation Xidian University.2004:93-100.
［8］Dipietro R C. Extended Factored Space-time Processing for Airborne Radar Systems［C］//Proceeding of the 26th Asilomar Conference on Signal, System, and Computers. Pacific Grove: IEEE, 1992: 425-430.
［9］廖桂生, 保铮. 机载雷达时空二维部分联合自适应处理［J］. 电子科学学刊, 1993, 15(6): 575-580.
Liao Guisheng, Bao Zheng. A Partial Adaptive Spatial-Temporal Processing for Airborne Radars［J］. Journal of Electronics, 1993, 15(6): 575-580.

[1]	冯为可;张永顺;张丹. 一种新的角度多普勒补偿方法[J]. J4, 2015, 42(6): 158-163.
[2]	姜晖;卢光跃. 贝塞尔级数展开的机载前视阵雷达杂波谱补偿方法[J]. J4, 2012, 39(3): 185-189+195.
[3]	姜晖;廖桂生. 双基机载雷达的杂波谱补偿方法[J]. J4, 2010, 37(1): 68-72+95.
[4]	孟祥东;吴建新;王彤;保铮. 机载双基雷达杂波分析及其距离模糊杂波的抑制 [J]. J4, 2008, 35(6): 992-998.