同步光信号低抖动通信系统  

Synchronous optics signal with low jitter communication system

作　　者：王贝贝[1] 郑建生[1] 朱玉建[2] 李继[1] 

机构地区：[1]武汉大学电子信息学院,武汉430070 [2]武汉大学GNSS中心,武汉430079

出　　处：《光通信技术》2014年第10期33-35,共3页Optical Communication Technology

基　　金：国家自然科学基金项目(61273053)资助

摘　　要：该系统完成了一种数字同步脉冲信号皮秒级抖动传输,在发送端将100MHz时钟信号和10kHz方波信号进行编码,得到10kHz同步脉冲信号和已编码100MHz同步脉冲信号,通过光纤信道传输已编码100MHz同步脉冲信号,在接收端用250MHz频率时钟进行解调,最后解码输出10kHz同步脉冲信号。测试结果表明,该系统编码和解码方法可靠性高,同步性好,满足低抖动传输要求。The system accomplishes the transmission of digital synchronous optics signal with low jitter. In the sending terminal, the 100MHz clock signal and 10kHz pulse signal are encoded to get the 10kHz syn- chronous signal and the encoded 100MHz synchronous signal. In the receiving terminal, we obtain the decod- ing output of 10kHz synchronous signal with the 250MHz clock signal. The test results show that it has good reliability of the encoding method and the decoding method, besides, this system has good synchronicity and meets the requirements of the transmission of synchronous optics signal with low jitter.

关 键 词：同步光 FPGA 低抖动 

分 类 号：TN929.1[电子电信—通信与信息系统]