Odd Symmetry Error function Blind Equalization Algorithm Based on Orthogonal Wavelet Transform
Chao Yang · Jisuanji fangzhen · 2010
Aiming at the slow convergence rate and big mean square error of Constant Modulus Algorithm(CMA),orthogonal wavelet transform based odd symmetry error function blind equalization algorithm blind equalization algorithm was proposed,on the basis of orthogonal wavelet transform based blind equalizer structure and characteristics of odd symmetry error function,the convergence rate of the proposed algorithm could be improved by normalized orthogonal wavelet transform and its mean square error could be reduced by odd symmetry of error function and the convergence rate was further improved via using the performance of variable step size.Simulation tests with underwater acoustic channel indicate that the proposed algorithm has not only faster convergence rate but also less mean square error.