Orthogonal Wavelet Transform Based Sign Decision Dual-mode Blind Equalization Algorithm

摘要：

Aiming at the slow convergence rate and the high mean square error of Constant Modulus Algorithm(CMA) ,a new orthogonal Wavelet Transform based Sign Decision Dual-mode blind equalization Algorithm(WT-SDDA) is proposed.In the proposed algorithm,orthogonal Wavelet Transform based Constant Modulus Algorithm (WT-CMA) is integrated with orthogonal Wavelet Transform based Stop-and-Go Changeable Modulus blind equalization Algorithm (WT-SG-CMA),and the switch process is decided by the sign decision.Simulation tests with underwater acoustic channel shows that the proposed WT-SDDA algorithm outperforms the CMA and the WT-CMA in the convergence rates and residual mean square error and that it has the faster convergence rate than the WT-SG-CMA under condition of the same residual error.

关键词： constant modulus algorithm wavelet transform dual-mode underwater acoustic channel convergence rate

作者: Ye-cai Guo Ying-ge Han Chao Yang

作者单位: Nanjing University of Information Science &Technology,Nanjing 210044,P.R.China;Anhui University of S Anhui University of Science and Technology,Huainan 232001,P.R.China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）