一种基于MMMA的双模式变步长盲均衡算法

摘要

To solve modified constant modulus algorithm’s problems that it has a slow convergence and has large inter-symbol interference,this paper put forward a varying step dual-mode blind equalization lgorithm based on modified multi-mode algorithm from the introduction of local information and variable step. Through theoretical analysis and experimental simulation,proved that the improved algorithm has better effect compared with traditional algorithm.%针对传统修正恒模算法（MCMA）收敛速度慢、剩余码间干扰大的缺点，在双模式修正恒模算法（MC-MA+DD-LMS）的基础上引入局部信息量和变步长的思想，提出了一种基于修正多模算法（MMMA）的双模式变步长修正多模算法（VS-MMMA+DD-LMS）。经过理论分析和实验仿真，证明改进后的算法较传统算法具有更好的均衡效果。