小快拍相干源时的自适应波束形成方法

An adaptive beamforming algorithm in the presence ofcoherent interference

基于特征空间自适应波束形成算法,针对等距离线阵提出了一种波束形成方法.通过构造一个特殊的矩阵代替协方差矩阵,可以克服特征空间算法不能在相干环境下工作的缺点,且在低信噪比、小快拍数下自适应波束形成就能收敛并保持较好的性能.

Based on the ESB method, this pape presents a novel beamforming algorithm for the uniform linear array which constructs a special matrix instead of the covariance matrix. The algorithm can overcome the problem that the ESB can not work in the environment of coherent signals. Moreover, the algorithm can converge rapidly and keep a good performance in a low SNR and a little snaphshots.