Study of dual mode blind equalization algorithm based on T/4 fractionally spaced sampling
Xiaoqin Zhang, Liyi Zhang · Journal of Circuits and Systems · 2012
Aiming at the lower convergence rate and larger mean square error(MSE)of the constant modulus algorithm(CMA),a new dual mode blind equalization algorithm is proposed in this paper.In the beginning of algorithm,the blind equalization algorithm based on T/4 fractionally spaced sampling(T/4 FSE-CMA) is used.The frequency chaos are avoided because of the over-sampling technology.When the algorithm is converged,the algorithm switches decision directed algorithm to lessen the bit error rate(BER).Simulation results show that the new algorithm has faster convergence rate,smaller steady-state errors and lower bit error ratio.