Gardner定时同步环路自噪声消减算法研究  

Research on Self-noise Reduction Algorithms for Gardner Timing Recovery Loop

作　　者：付永明[1] 朱江[1] 琚瑛珏[1] 白红[2] 

机构地区：[1]国防科学技术大学电子科学与工程学院 [2]中国人民解放军95661部队自动化站

出　　处：《现代电子技术》2011年第21期92-95,共4页Modern Electronics Technique

摘　　要：为了解决Gardner定时同步环路自噪声较大的问题,对现有的各种自噪声消减算法进行了归类研究,将其划分为算法修正类和波形预处理类两类,并分别进行了理论和仿真分析,得到了各类算法性能的对比结果及与性能限的差距,最后分析了各类算法的实际应用场景及未来的研究方向。To resolve the problem of larger self-noise existed in Gardner timing recovery loop, the existing self-noise re- duction algorithms are classified and researched, which are classified into algorithm modification and waveform preprocessing. The theoretic analysis and simulation results are performed, and the performance comparison results of all kinds of algorithms are gained. The practical application situation and development direction of these algorithms are analyzed.

关 键 词：Gardner法 自噪声 改进算法 预滤波 MCRB 

分 类 号：TN911-34[电子电信—通信与信息系统]