基于余弦代价函数T/4分数间隔盲均衡算法—Simulink仿真  

Simulation of cosine cost function based T/4 fractionally spaced blind equalization algorithm based on Simulink

作　　者：崔鹏鹏[1] 韩迎鸽[1] 李保坤[1] 王超 CUI Pengpeng;HAN Yingge;LI Baokun;WANG Chao(College of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan,Anhui 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《计算机工程与应用》2018年第18期110-114,120,共6页Computer Engineering and Applications

基　　金：国家自然科学基金(No.51605006)

摘　　要：在对T/4-FSE-CMA算法研究分析的基础上,针对非常模QAM信号,提出了一种基于余弦代价函数T/4分数间隔盲均衡算法(T/4-FSE-CCF)。该算法将CMA的代价函数用构造的余弦代价函数来替代;新算法摆脱了CMA对统计模值R的依赖,且均衡器理想均衡时该算法的的稳态均方误差(Mean Square Error,MSE)为零。通过MAT-LAB的M文件对T/4-FSE-CCF的性能进行验证,在获得算法最佳性能时的参数值后,进一步由这些参数搭建了T/4-FSE-CCF的Simulink仿真模型。On the basis of the research and analysis of T/4 fractionally spaced equalizer based on constant modulus algorithm(T/4-FSE-CMA),for non-constant modulous QAM signals,a T/4 Fractionally Spaced blind Equalization algorithm based on Cosine Cost Function(T/4-FSE-CCF)is proposed.The cost function of CMA is replaced by cosine cost function in the proposed algorithm.The new algorithm gets rid of the dependence on statistical Modulus value R compared with CMA,and when the equalizer is ideal balanced,the steady-state Mean Square Error(MSE)of the algorithm is zero.The performance of the proposed T/4-FSE-CCF is simulated by M file of MATLAB.After the optimum performance parameters of proposed T/4-FSE-CCF are obtained,the Simulink model of the T/4-FSE-CCF can be established.

关 键 词：常模算法 分数间隔 余弦代价函数 误差函数 Simulink 

分 类 号：TN911.72[电子电信—通信与信息系统]