一种ISI信道的联合定时恢复算法  

A New Method for Timing Recovery in ISI Channels

作　　者：诸文[1] 仇润鹤[1] 

机构地区：[1]东华大学信息科学与技术学院,上海硕士研究生200051

出　　处：《微计算机信息》2007年第05X期72-73,100,共3页Control & Automation

基　　金：国家自然科学基金(70271001)

摘　　要：通过研究Viterbi算法的特性,本文采用了一种新的联合定时恢复方法,能同时进行序列检测和定时恢复,适用于低信噪比的ISI信道,具有效率高、延时小、实时跟踪的特点。仿真结果表明即使在检测器的误彼特率高于10-2时算法仍能很好的工作。　Timing recovery is essential in synchronous communication and storage systems, especially when the channel has severe inter-symbol interference （ISI）.The new technique that allows satisfactory timing recovery and detection for ISI channels even at low SNRs by making the two tasks one joint and tightly coupled operation.It has used Viterbi-like algorithm.BER simulation results show that the proposed timing recovery scheme operates smoothly even when the BER of the detector is highter that 10-2

关 键 词：定时恢复 ISI信道 Viterbi-like算法 

分 类 号：TN914[电子电信—通信与信息系统]