最陡下降恒模类盲均衡算法研究

摘要

恒模算法（CMA）是一种目前在无线通信系统中广泛应用于阵列处理、均衡、多用户检测中的盲均衡算法。本文针对恒模算法中常见的4种最陡下降恒模算法（SDCMA）进行了分析和仿真,并对各种算法的优缺点进行了分析说明,得到了不同算法的均方误差曲线和星座图。%The constant modulus algorithm（CMA） is a blind algorithm.It is applied in the array processing、equalization and multi-user detection（MUD） widely in the wireless communication system.This paper is main discussed with four kinds of common SDCMA and gives them the analysis and simulation.The advantage and disadvantage of all the modified algorithms are also described and explained.MSE curves and constellation figures are obtained after equalization.