An Orthogonal Wavelet Transform Fractionally Spaced Blind Equalization Algorithm Based on the Optimization of Genetic Algorithm

An orthogonal wavelet transform fractionally spaced blind equalization algorithm based on the optimization of genetic algorithm(WTFSE-GA) is proposed in viewof the lowconvergence rate,large steady-state mean square error and local convergence of traditional constant modulus blind equalization algorithm(CMA).The proposed algorithm can reduce the signal autocorrelation through the orthogonal wavelet transform of input signal of fractionally spaced blind equalizer,and decrease the possibility of CMA local convergence by using the global random search characteristics of genetic algorithm to optimize the equalizer weight vector.The proposed algorithm has the faster convergence rate and smaller mean square error compared with FSE and WT-FSE.The efficiency of the proposed algorithm is proved by computer simulation of underwater acoustic channels.     

引入支持向量机的小波分数间隔盲均衡算法

针对正交小波变换分数间隔盲均衡算法(FSE-WT-CMA)收敛速度慢且存在局部收敛问题,提出了一种引入支持向量机的正交小波分数间隔盲均衡算法(SVM-FSE-WT-CMA).该算法通过对分数间隔盲均衡器的输入信号进行正交小波变换,以降低信号的自相关性,并且利用支持向量机将盲均衡问题转化为全局最优的支持向量回归问题,采用...