几种成形滤波器的抗时钟抖动性能的比较  

Comparision of Timing Jitter Robustness for a Few Kinds of Shaping Filter

作　　者：樊平毅[1] 冯重熙[1] 

机构地区：[1]清华大学

出　　处：《通信学报》1996年第1期69-76,共8页Journal on Communications

摘　　要：提出了一种码间串扰量的测试准则，它是均方意义下眼图开启度测试准则的推广。利用此准则对几种不同的成形滤波器的抗时钟抖动性能进行了精确的数值分析，证明引进滚降系数α可以提高滤波器的抗时钟抖动性能，并且随着参数α的增加，抗时钟抖动性能提高。对同一参数α，数值分析结果表明，利用矩形窗设计的成形滤波器和利用ＤＪ（ｄｏｕｂｌｅｊｕｍｐ）谱设计的成形滤波器的抗时钟抖动性能较好。in this paper, the measure criterion of intersymbol interference is proposed, which is an expansion of the mean squared eye closure criterion. Using the measure criterion, the accurate numerical analysis about the performance of timing jitter robustness for a few kinds of shaping filter has been done. It is proved that introducing the parameter a can improve the performance of timing jitter roubstness of shaping filter; the larger the parameter is, the better the timing jitter robustness of shaping filter is.For the same parameter α, the result of numerical analysis has shown that the performances of timing jitter robustness of shaping filters using rectangle window to design and that using the DJ (double sides spectrum jump)to design are much better.

关 键 词：码间串扰 成形滤波器 时钟抖动 

分 类 号：TN713.07[电子电信—电路与系统]