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一种稳健的自适应波束形成方法
An approach of robust adaptive beamforming
【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.
【Abstract】 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.
【关键词】 阵列信号处理;
自适应波束形成;
线性约束最小方差;
【Key words】 array signal processing; adaptive beamforming; linearly constrained minimum variance;
【Key words】 array signal processing; adaptive beamforming; linearly constrained minimum variance;
- 【文献出处】 哈尔滨工业大学学报 ,Journal of Harbin Institute of Technology , 编辑部邮箱 ,2005年10期
- 【分类号】TN911.7;
- 【被引频次】7
- 【下载频次】266