贝塞尔级数展开的机载前视阵雷达杂波谱补偿方法

doi:10.3969/j.issn.1001-2400.2012.03.030

J4 ›› 2012, Vol. 39 ›› Issue (3): 185-189+195.doi: 10.3969/j.issn.1001-2400.2012.03.030

贝塞尔级数展开的机载前视阵雷达杂波谱补偿方法

姜晖;卢光跃

(西安邮电学院通信与信息工程学院，陕西西安 710121)

收稿日期:2011-07-24 出版日期:2012-06-20 发布日期:2012-07-03
通讯作者: 姜晖
作者简介:姜晖(1976-)，男，讲师，博士，E-mail: jh02_76@126. com．
基金资助:
国家自然科学基金资助项目(61101243);国家部委预研重点实验室基金资助项目(***110C0104);教育部新世纪优秀人才资助项目(NCET-08-0891)

Compensation of the clutter spectrum for airborne forward-looking radar based on the Bessel series expansion

JIANG Hui;LU Guangyue

(School of Communications and Information Eng., Xi'an Univ. of Post and Telecommunication, Xi'an 710121， China)

Received:2011-07-24 Online:2012-06-20 Published:2012-07-03
Contact: JIANG Hui

摘要/Abstract

摘要：

提出了基于级数展开的杂波谱补偿方法，首先采用贝塞尔函数对每个距离环实现方位和俯仰角的分离|接着将训练单元的俯仰矢量向待检单元进行投影，得到一个变换矩阵．再使用变换矩阵对给定的多普勒门的数据进行处理，减轻杂波谱对距离的依赖性|最后，从变换后的数据中估计杂波协方差矩阵，再利用空时自适应算法对补偿后的数据进行杂波抑制．仿真结果表明，该方法能有效改善杂波的非平稳性，提高了系统抑制杂波的性能．

关键词: 级数展开, 前视阵雷达, 杂波谱补偿

Abstract:

The clutter spectrum depends highly on the range for forward-looking radar, which results in the heterogeneous ground clutter in space-time adaptive processing (STAP). According to the clutter model, a novel method is proposed. The method firstly uses the Bessel function to separate the azimuth from the elevation, and the spatial-time steering vector could be represented as the azimuth and elevation vector kronecker product to each range gate. Secondly, a transform matrix could be obtained by projecting the training unit of the elevation vector to the tested, which is applied to process the data at a given Doppler gate, and eliminate the heterogeneous ground clutter and generate a sufficient data to construct the new covariance matrix. Finally, the conventional STAP could be applied to the clutter suppression. Simulation results verify the effectiveness of the proposed method.

Key words: series expansion, forward-looking radar, clutter spectrum compensation

中图分类号:

959.73

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.

JIANG Hui;LU Guangyue. Compensation of the clutter spectrum for airborne forward-looking radar based on the Bessel series expansion[J]. J4, 2012, 39(3): 185-189+195.

参考文献

［1］ Brenna L E, Reed I S. Theory of Adaptive Radar［J］. IEEE Trans on AES, 1973, 9(2): 237-252.
［2］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.
［3］ Duan Keqing, Xie Wenchong, Wang Yongliang. Analysis and Suppression for Nonstationary Clutter in Airborne Conformal Array Radar ［C］//ICSP2010. Beijing: IEEE, 2010: 2087-2091.
［4］ Zhao Jun, Zhao Jianyang, Xu Hang. A Clutter Suppression Method Based on Angle-Doppler Compensation for Airborne Radar with Uniform Circular Arrays Antennas ［C］//2010 2nd International Conference on Signal Processing Systems. Dalian: IEEE, 2010: 576-579.
［5］ Borsari G K. Mitigating Effects on STAP Processing Caused by an Inclined Array ［C］//Proceedings of the IEEE National Radar Conference. Dallas: IEEE, 1998: 135-140.
［6］ 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］//ICASSP2003. Hong Kong: IEEE, 2003: 73-76.
［7］ 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.
［8］李明, 廖桂生, 周争光. 基于导数更新的机载前视阵雷达降维STAP方法［J］. 系统工程与电子技术, 2009(9): 2033-2036.
Li Ming, Liao Guisheng, Zhou Zhengguang. Reduced Dimension of Derivative Based Updating STAP Algorithm for Airborne Forward Looking Radar ［J］. Systems Engineering and Electronics, 2009(9): 2033-2036.
［9］ Doron M A, Doron E, Weissa J. Coherent Wide-Band Processing for Arbitrary Array Geometry ［J］. IEEE Trans on SP, 1993, 41(5): 414-417.
［10］ Jiang Hui, Liao Guisheng, Qu Yi. Compensation of Clutter Spectrum for Forward-looking Radar Based on the Spatial Steering Vector Fitting ［C］//IET'09 (NO 0344). Guilin: IEEE, 2009: 1-4.
［11］ Jiang Hui, Liao Guisheng, Qu Yi. Compensation of Clutter Spectrum for Forward-looking Radar Based on Clutter Subspace Transformation ［C］//RADAR 2009 (NO 0322). Bordeatlx: IEEE, 2009: 1-4.
［12］ Doron M A, Weisis A J. On Focusing Matrices for Coherent Signal Subspace Processing ［J］. IEEE Trans on SP, 1992, 40(6): 1295-1302.
［13］保铮, 廖桂生, 吴仁彪, 等. 相控阵机载雷达杂波抑制的时-空二维自适应滤波［J］. 电子学报,1993, 21(9): 1-7.
Bao Zheng, Liao Guisheng, Wu Renbiao, et al. 2-D Temporal-spatial Adaptive Clutter Suppression for Phased Array Airborne Radars［J］. Electronica Sinica, 1993, 21(9): 1-7.
［14］廖桂生, 保铮, 张玉洪. 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, Zhang Yuhong. A Partial Adaptive Spatial-Temporal Processor for Airborne Radars［J］. Journal of Electronics, 1993, 15(6): 575-580.

[1]	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.
[2]	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.

贝塞尔级数展开的机载前视阵雷达杂波谱补偿方法

Compensation of the clutter spectrum for airborne forward-looking radar based on the Bessel series expansion

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