盲恒模均衡算法的比较分析和改进

The Performance Comparison & Improvement of BlindConstant Modulus Equalization Algorithms

首先介绍了一种针对单输入多输出(SIMO)通信接收系统模型的盲均衡算法,即分数间隔恒模算法(FSE-CMA)。并重点针对该算法的缺点进行了改进,给出了另两种新的改进型FSE-CMA算法,即SE-CMA算法和DSE-CMA算法。通过仿真实验比较了这三种算法的性能,得出了DSE-CMA算法比FSE-CMA算法和SE-CMA算法有不同程度改进的结论,表明了这种恒模算法更有利于实际应用。

This paper firstly makes introduction to the FSE-CMA algorithm, which is a blind equalization algorithm applicable to the single-input/multiple-output communication system. We then make emphasis on the improvement to this algorithm according to its defaults, and give other two novel FSE-CMA algorithms, i.e., signed-error CMA algorithm and dithered signed-error CMA. By simulation we compare the performance of these three algorithms, and draw the conclusion that DSE-CMA performs better that the other two algorithms, and this algorithm is more fit for practical application.