| 基于双曲函数的变步长LMS算法及其分析 |
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| 引用本文： | 李建平,蒙建波.基于双曲函数的变步长LMS算法及其分析[J].传感器与微系统,2011,30(5):127-128,132. |
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| 作者姓名： | 李建平 蒙建波 |
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| 作者单位： | 重庆大学,自动化学院,重庆,400044 |
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| 摘 要： | 提出一种基于双曲函数的变步长最小均方(LMS)算法.通过对双曲余弦函数进行数学变换,建立起误差信号与步长因子的LMS算法,根据误差信号的变化来自动调节步长的大小.仿真结果证明:所提出的LMS算法比标准的LMS算法有着更快的收敛速度等优点.
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| 关 键 词： | 自适应滤波器 最小均方算法 变步长 双曲函数 |
A new variable step size LMS algorithm based on hyperbolic tangent function |
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| LI Jian-ping,MENG Jian-bo.A new variable step size LMS algorithm based on hyperbolic tangent function[J].Transducer and Microsystem Technology,2011,30(5):127-128,132. |
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| Authors: | LI Jian-ping MENG Jian-bo |
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| Affiliation: | LI Jian-ping,MENG Jian-bo(College of Automation,Chongqing University,Chongqing 400044,China) |
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| Abstract: | A variable step least mean square(LMS) algorithm is presented.The LMS algorithm between step size and error signal is established by a mathematical transform of hyperbolic tangent function.According to change of error signal,the step size is adjusted automatically.The simulation results show that the proposed algorithm has faster convergence speed than standard LMS algorithm. |
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| Keywords: | adaptive filter least mean square(LMS) algorithm variable step size hyperbolic tangent function |
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