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    Abstract:

    This paper makes a comparison between common LMS and NLMS. It analyzes their error, convergence speed and stability of different algorithms with Matlab program. The structure of the Adaptive Filter based on the NLMS and the simulation of its application in the removal of noise signal are given. The results show that improved NLMS algorithm can significantly help the Smart Antenna receive signals with less error. The analysis of the NLMS Adaptive Filter is useful to the design of Smart Antenna.

    Reference
    1 黄武襄,王振五. CDMA系统中的几种智能天线自适应算法.重庆邮电学院学报(自然科学版), 2004, 16(4):17-21. 2 何振亚.自适应信号处理.北京:科学出版社, 2002. 1-59. 3 张秦,冯存前.变步长LMS算法及其在自适应消噪中的应用.现代电子技术, 2003,32(14):15-18. 4 李正周. MATLAB数字信号处理与应用.北京:清华大学出版社, 2008. 10-78.
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万政伟,惠晓威,朱婷.基于NLMS算法的自适应滤波器的研究与应用.计算机系统应用,2010,19(4):46-48

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History
  • Received:July 12,2009
  • Revised:September 05,2009
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