用Matlab分析高速数据传输中的时钟抖动  

Analysis of the clock jitter in the high-speed data transmission by Matlab

作　　者：刘志堂 邵保华[1] 孟克[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2004年第10期12-14,共3页Applied Science and Technology

摘　　要：提出了一种分析高速数据传输中时钟抖动的解决方案———Matlab方法.分析了高速数据通讯中时钟抖动产生的原因及对通信系统的影响,介绍了用TDS7000系列数字荧光示波器和Matlab捕获信号数据并随后对不归零制(NRZ)时钟信号进行简单抖动分析的方法,完成了高速数据通信中的时钟信号的采集以及时钟抖动的鉴定和分析.试验验证,本方法大大提高了抖动鉴定工作的精度和效率.A solution is presented by Matlab method to analyze the clock dithering in high-speed data transmission. The reasons for the clock dithering in high-speed data communication and the effects on the communication system are analyzed. The work done is as follows:sampling the signal by the TDS7000 series Oscilloscope,and analyzing the NRZ clock signal in Matlab and the clock dithering in the high-speed data transmission. Experiments show that this method can improve the precision and efficiency of the clock's appraisal.

关 键 词：时钟抖动 信号采样 示波器 MATLAB 

分 类 号：TN919[电子电信—通信与信息系统]