T/4 coherent integration fractionally spaced multi-modulus blind equalization algorithm
Yingge Han · Computer Engineering and Applications Journal · 2012
Aiming at the problem of convergence difficulty and the big residue Mean Square Error(MSE)existed in high-order QAM signal equalization,this paper proposes the Coherent Integration based T/4 Fractionally Spaced Multi-Modulus blind equalization Algorithm(CIFSMMA)on the basis of analyzing the Multi-Modulus blind equalization Algorithm(MMA),T/4 Fractionally Spaced Multi-Modulus blind equalization Algorithm(FSMMA)and coherent integration algorithm.The underwater acoustic channel simulation results with 128QAM signal show that the convergence speed of the proposed algorithm is faster,the steady-state error is smaller and the eye pattern is more clear.