›› 2011, Vol. 24 ›› Issue (7): 103-.

• 论文 • 上一篇    下一篇

LMS自适应波束形成方法研究

王桂宝,林中朝,王兰美,蒋小杰   

  1. (1.西安电子科技大学 电子工程学院,陕西 西安 710071;2.西安电子科技大学 理学院,陕西 西安 710071)
  • 出版日期:2011-07-15 发布日期:2011-08-16
  • 作者简介:王桂宝(1977—),男,博士研究生。研究方向:信号处理以及滤波方法。
  • 基金资助:

    国家自然科学基金资助项目(61001065)

Research on LMS Adaptive Beamformer

 WANG Gui-Bao, LIN Zhong-Chao, WANG Lan-Mei, JIANG Xiao-Jie   

  1. (1.School of Electronic Engineering,Xidian University,Xi'an 710071,China;
    2.School of Science,Xidian University,Xi'an710071,China)
  • Online:2011-07-15 Published:2011-08-16

摘要:

研究了最小均方误差(LMS)和归一化最小均方误差(NLMS)自适应波束形成方法的性能,分析了影响波束形成性能的因素,通过计算机仿真实验验证了搜索步长、迭代次数、快拍对波束形成性能的影响,并比较了两种方法的收敛速度、稳态误差和抗干扰性能。

关键词: 波束形成, 步长, 最小均方误差, 迭代

Abstract:

The performance of least mean square error (LMS) algorithm and normalized NLMS algorithm was researched in this paper.The factors that affecting beamformer were ananlysed and large amount of simulation was made to show their influence.The performance and convergence error of LMS and NLMS was campared and the simulation verified that NLMS was superior to LMS.

Key words: adaptive beamformer;step length;LMS;iteration

中图分类号: 

  • TN713