摘要
基于LCMV波束形成原理,根据贝叶斯估计理论,提出了一种基于加权的波束形成方法,能够很好地克服LCMV波束形成对期望信号DOA误差特别敏感的弱点.仿真试验表明,该方法性能稳定,对期望信号DOA误差具有很好的稳健性.
Based on the principle of linearly constrained minimum variance （LCMV） adaptive beamforming, in terms of the Bayesian estimation theory, an adaptive beamforming by using Bayesian posterior probability weighted sum was proposed. This beam former was developed to improve robustness to pointing error, and to overcome the shortcoming of sensitivity to pointing error of LCMV beamforming. The results of simulation indicated that the performance of this proposed beamforming method was steady and robust to the pointing error.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2005年第10期1436-1439,共4页
Journal of Harbin Institute of Technology
关键词
阵列信号处理
自适应波束形成
线性约束最小方差
array signal processing
adaptive beamforming
linearly constrained minimum variance
