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一种相干环境下的稳健自适应波束形成算法

戴凌燕 王永良 李荣锋

现代雷达2009,Vol.31Issue(11):56-59,63,5.
现代雷达2009,Vol.31Issue(11):56-59,63,5.

一种相干环境下的稳健自适应波束形成算法

A Robust Adaptive Beamforming Algorithm in Coherent Jamming

戴凌燕 1王永良 2李荣锋3

作者信息

  • 1. 国防科技大学电子科学与工程学院,长沙,410073
  • 2. 空军雷达学院,武汉,430019
  • 3. 空军雷达学院重点实验室,武汉,430019
  • 折叠

摘要

Abstract

For the uniform linear array, a robust adaptive beamforming algorithm for rejecting the coherent jamming is presented. Firstly, the sampled covariance matrix is transformed by iterative Toeplitz processing. Thus, on one hand, the deeorrelation of co-herent signals is realized; on the other hand, the performance degradation due to the disturbance of noise subspaee is avoided. Then with the transformed covariance matrix, the eigenspaee-based beamforming is implemented. This method, therefore, not only solves the coherent jamming rejection problem in the case of beam pointing error, but also possesses relatively high output perform-ance when the number of sampling is few. The effectiveness of the method presented is demonstrated by computer simulation re-sults.

关键词

相干干扰/基于特征空间/迭代Toeplitz化/自适应波束形成

Key words

coherent jamming/ eigenspace-based/ iterative Toeplitz/ adaptive beamforming

分类

信息技术与安全科学

引用本文复制引用

戴凌燕,王永良,李荣锋..一种相干环境下的稳健自适应波束形成算法[J].现代雷达,2009,31(11):56-59,63,5.

基金项目

国家自然科学基金(No.60736009) (No.60736009)

现代雷达

OA北大核心CSCDCSTPCD

1004-7859

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