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本文在简要介绍自适应判决反馈均衡接收机发展情况的基础上,对系统模型进行了描述,推导了理想判决反馈均衡接收机,确定了前向滤波器和反馈滤波器的设计要求以及最小均方误差。文中对实际判决反馈均衡接收机的性能进行了分析,推广了George的结果。讨论了缓慢变化信道中最小均方判决反馈均衡器的自适应算法、收敛性和稳态性能。最后给出了自适应反馈均衡接收机的部分计算机模拟结果。
Based on the brief introduction of the development of adaptive decision feedback equalizer receiver, this paper describes the system model, derives the ideal decision feedback equalization receiver, determines the design requirements of the forward filter and the feedback filter, and the minimum mean square error. The paper analyzes the performance of the actual decision feedback balanced receiver and generalizes the result of George. The adaptive algorithm, convergence and steady-state performance of the least mean square decision feedback equalizer in slowly varying channels are discussed. Finally, some computer simulation results of adaptive feedback equalization receiver are given.