【摘要】 介绍了基于 FIR和 IIR的采用最小均方误差 (MMSE)算法的判决反馈均衡器 ,针对该算法的缺点提出了两种采用自适应算法的判决反馈均衡器 :LMS算法和 CMA算法 ,对这些算法的仿真表明了各自的性能和优缺点 ,在此基础上提出了一种改进的混合算法 .仿真表明 ,该算法只需要少量的训练序列 ,性能比 CMA算法有明显的改进 .更多还原

【Abstract】 This paper introduced the design realization of FIR and IIR based decision feedback equalizer which adopts MMSE algorithm. Aimed at its defaults, two adaptive decision feedback equalizers are brought forward, one adopts the LMS algorithm and the other adopts the CMA algorithm. The detailed simulation results of these algorithms were given and their performance was analyzed. Some improvement to these two algorithms was made by putting forward a hybrid algorithm. The simulation result illustrates it operates better than CMA algorithm.更多还原