DSP Simulation of a New Variable Step-size Blind Equalization Algorithm Based on Wavelet Transformation

被引：0

作者：

Zhang, Shuyan ^{[1
]}

Guo, Yecai ^{[1
]}

Zhao, Xueqing ^{[1
]}

机构：

[1] Anhui Univ Sci & Technol, Coll Elect Engn & Informat, Huainan 232001, Peoples R China

来源：

PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON APPLICATION OF MATHEMATICS AND PHYSICS, VOL 2: ADVANCES ON APPLIED MATHEMATICS AND COMPUTATION MATHEMATICS | 2010年

关键词：

blind equalization; hyperbolic tangent function; orthogonal wavelet; underwater acoustic channels; DSP;

D O I：

暂无

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In order to overcome the slow convergence rate and large Mean Square Error (MSE) of Constant Modulus Algorithm (CMA), an equalizer and its output are expressed by a family of orthogonal wavelet packet functions. Then, a new variable step-size blind equalization algorithm based on Wavelet Transformation and Hyperbolic Tangent Function (WT-Tanh-CMA) was proposed. The convergence rate of the proposed algorithm can be improved via using the de-correlation ability of orthogonal wavelet packet transformation. The optimal parameter values of the proposed algorithm are first obtained by MATLAB simulation. Then the efficiency of proposed algorithm is proved by DSP simulation in underwater acoustic channel.

引用

页码：326 / 331

页数：6

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