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

摘要：

In order to overcome the slow convergence rate and large Mean Square Error (MSE) of Censtant 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 (WTTanh-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.

关键词： blind equalization hyperbolic tangent function orthogonal wavelet underwater acoustic channels DSP

作者: Shuyan ZHANG Yecai GUO Xueqing ZHAO

作者单位: Collage of Electrical Engineering and Information, Anhui University of Science and Technology, Huain Collage of Electrical Engineering and Information, Anhui University of Science and Technology, Huain

会议类型: 国际会议

会议名称: 2010 International Conference on Application of Mathematics and Physics(2010国际数理科学与气象学术研讨会暨2010空间天气学研讨会 AMP2010)

会议地点: 南京

会议语种:英文

页码: 694-699

在线出版日期: 2010-05-08（万方平台首次上网日期，不代表论文的发表时间）