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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。
First of all, a blind equalization algorithm for fractional-order constant modulus (FSE-CMA) is introduced for the single input multiple output (SIMO) communication receiving system model. The improvement of the shortcomings of the algorithm is emphasized. Two other new improved FSE-CMA algorithms are given, namely SE-CMA algorithm and DSE-CMA algorithm. The performance of these three algorithms is compared through the simulation experiment, and the conclusion that the DSE-CMA algorithm is improved to some extent compared with the FSE-CMA algorithm and the SE-CMA algorithm is obtained. It is shown that the constant modulus algorithm is more practical.