稳健的Capon波束形成

被引:11
作者
刘宏清
廖桂生
张杰
机构
[1] 西安电子科技大学雷达信号处理重点实验室
关键词
阵列信号; 稳健波束形成; 阵列误差;
D O I
暂无
中图分类号
TN911 [通信理论];
学科分类号
081002 ;
摘要
针对期望信号假定导向矢量与真实导向矢量存在误差时,常规自适应波束形成将有较大的性能损失,提出了一种稳健的自适应波束形成算法来克服这种误差敏感性。该方法分两步完成,首先估计出实际的导向矢量,然后再用该估计结果求出最优权。通过Lagrange乘子法得到简单的闭式解,它不属于对角加载系列的方法,因而不存在加载量的确定这一问题。最后通过计算机仿真验证了所提方法的有效性与优越性。
引用
收藏
页码:1669 / 1672
页数:4
相关论文
共 8 条
[1]  
Theory and application of covariance matrix taper for robust adaptive beamforming. Guerci Joseph R. IEEE Trans . on Signal Processing . 1999
[2]  
Robust Capon beamforming. Stoica Petre,Wang Zhisong,Li Jian. IEEE Signal Processing Letters . 2003
[3]  
Doubly constrained robust Capon beamforming. Li Jian,Stoica Petre,Wang Zhisong. IEEE Transactions on Signal Processing . 2004
[4]  
On robust capon beamforming and diagonal loading. LI J,Stoica P,Wang Z. IEEE Transactions on Signal Processing . 2003
[5]  
An adaptive generalized sidelobe canceller with derivative constraints. Buckley K M,Griffths L J. IEEE Trans . on Antennas Propagat . 1986
[6]  
Derivative constraints for broad-band element space antenna array processor. Er M H,Cantoni A. IEEE Trans . on Acoust .Speech, Signal Processing . 1983
[7]  
Robust adaptive beamforming for general-rank signal models. Shahram Shahbazpanahi,Gershman Alex B,Luo Zhiquan,et al. IEEE Transactions on Signal Processing . 2003
[8]  
Covariance matrix estimation errors and diagonal loading in adaptive arrays. Carlson Blair D. IEEE Trans . on Aerospace and Electronic Systems . 1988