New Modified Step-size Blind Equalization Algorithm
Hua Zhong · Jisuanji fangzhen · 2009
Constructing a kind of new error function and building a nonlinear function between the step-size factor and the error function,a novel modified step-size blind equalization algorithm(MS-MCMA) was proposed based on modified constant modulus algorithm(MCMA) to resolve the contradiction between MCMA's convergence speed and steady-state error.This algorithm could simultaneously improve convergence speed and steady-state error performance.Simulation results indicate that the convergence speed of the proposed algorithm increases by more than 100% comparing with ME-MCMA and DMSign-CMA,at the same time,the steady-state error performance of the proposed algorithm has been improved 5dB and 0.5 dB respectively when SNR is 30dB and 15dB.