| 基于零均值特性的箕舌线变步长 LMS算法 |
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| 引用本文： | 路翠华,王瑛,徐君明.基于零均值特性的箕舌线变步长 LMS算法[J].海军航空工程学院学报,2013,28(5):485-488. |
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| 作者姓名： | 路翠华 王瑛 徐君明 |
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| 作者单位： | [1]海军航空工程学院7系 [2]烟台有线广播电视信息网络中心,山东烟台264001 |
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| 摘 要： | 针对基于箕舌线变步长LMS算法步长更新公式易受噪声干扰的问题，根据高斯自噪声的零均值特性，提出基于零均值特性的箕舌线变步长LMS算法，使算法的抗噪声干扰能力增强。若2算法选取相同参数α、β，则基于零均值特性的箕舌线变步长LMS算法相对于箕舌线变步长LMS算法具有小的稳态误差。在保证算法收敛的条件下，基于零均值特性的箕舌线变步长LMS算法相对箕舌线变步长LMS算法具有较快的收敛速度。
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| 关 键 词： | 箕舌线变步长LMS算法 高斯白噪声 零均值特性 |
Tonguelike Curve VSLMS Algorithm Based on the Characteristic of Zero Mean |
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| LU Cui-hu,WANG Ying and XU Jun-ming.Tonguelike Curve VSLMS Algorithm Based on the Characteristic of Zero Mean[J].Journal of Naval Aeronautical Engineering Institute,2013,28(5):485-488. |
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| Authors: | LU Cui-hu WANG Ying and XU Jun-ming |
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| Institution: | 1. No.7 Department, Naval Aeronautical and Astronautical University; 2. Yantai Cable TV Broadcast Network Information Centre, Yantai Shandong 264001, China) |
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| Abstract: | The tonguelike curve VSLMS algorithm＇s step-formula can be disturbed easily by noise jamming. Ac- cording to the characteristics that the mean of white Gaussian noise was zero, tonguelike curve VSLMS algorithm based on zero mean was put forward in order to improve tonguelike curve VSLMS algorithm＇s ability of anti- noise. If two algorithms chose the same parameters α、β, tonguelike curve VSLMS algorithm based on zero mean would have less steady-state error than tonguelike curve VSLMS algorithm. Under the condition that the two algorithms were convergent, the convergence rate of tonguelike curve VSLMS algorithm based on zero mean was bigger than the convergence rate of tonguelike curve VSLMS algorithm. |
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| Keywords: | tonguelike curve VSLMS algorithm white Gaussian noise the characteristic of zero mean |
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