时间分集联合锁相环的新变步长盲均衡算法

本文提出一种联合锁相环的时间分集新型变步长盲均衡算法。该算法结合分集合并技术和变步长盲均衡算法的各自优点,在提高接收信号信噪比的同时,通过调整改进瑞利分段步长函数中的参数来加快算法的收敛速度,减小算法的均方误差和剩余码间干扰。此外,借助锁相环技术来对相位状态进行跟踪,对偏转的相位加以克服纠正。仿真结果表明新算法具有更快的收敛速度、可纠正相位旋转、稳态误差和剩余码间干扰更小的优点。

Time Diversity Combined with Phase-Locked Loop New Variable Step-size Blind Equalization Algorithm

This paper proposes a new time diversity variable step-size blind equalization algorithm with phase-locked loop. The proposed algorithm combines the respective advantages of diversity combining technology and variable step-size blind equalization algorithms. It improves the signal to noise ratio of the received signal, meanwhile, accelerate the convergent rate and reduce the mean square error and the remaining symbol interference of the algorithm by adjusting the modified Rayleigh segmentation step function parameters. In addition, it track the phase state and correct the deflection of phase by the phase-locked loop technology. The simulation results show that the new algorithm has the advantages of faster convergent rate, could correct the phase rotation, the less steady-state error and remaining symbol interference.