基于PR-QMF理论的判决反馈均衡器

PR-QMF based decision feedback equalization

根据完全重构正交镜像滤波器 (PR QMF)的理论 ,我们构造了一类正交变换并且用于变换域判决反馈均衡器 (DFE)的设计。在此基础上我们进一步讨论了该类DFE的优化设计。通过与卡胡南—洛也夫变换 (KLT)和离散余弦变换 (DCT)比较得出这样的结论 :经过最优化设计 ,本文提出的算法具有更快的收敛速度 ,同时 ,它还具有复杂程度低和设计灵活的优点。

Based on PR QMF theory,we construct a class of orthogonal transforms and apply them to the design of transform domain decision feedback equalization Then we further investigate the optimization design of these DFEs Compared with Karhunen Loeve Transform(KLT)and Discrete Cosine Transform(DCT),we attain the following conclusions:the proposed scheme together with the optimization design can provide better convergence performance In addition,it has the advantages of low complexity and adaptability for different channels