摘要
为了实现高速的数字光纤通信中的大量数据存储和时钟匹配,提出了在光纤通信系统中应用双口RAM对数据进行处理的方案,并详细讨论了双口RAM在FPGA中的实现过程,最终给出了双口RAM的时序仿真结果,并在光纤通信系统中进行了实验验证;结果表明:在光纤通信中应用双口RAM,重塑图像时钟,明显地消除了时钟的毛刺及抖动现象,增强了时钟的稳定性,降低了传输系统中各部分对信号数据及时钟的干扰,提高了数据传输的有效性,同时纠正了双口RAM读写不同步的情况。
In order to achieve large amounts of data storage and clock matching in the digital fiber--optical communication of high-- speed, propose for data processing application of dual--port RAM in fiber--optical communication system scheme, and discuss in detail the process of dual--port RAM in FPGA, finally simulation results of dual--port RAM is given, and the experimental verification in fiber--opti- cal communication system. The results show that using dual--port RAM to reshape the image of clock, obviously eliminating burr and jitter clock, enhance the clock stability, reduce the interference to the signal transmission system for data and clock, improve the effectiveness of data transmission, At the same time correct that the dual--port RAM read and write is not synchronous conditions.
出处
《计算机测量与控制》
北大核心
2014年第3期892-894,共3页
Computer Measurement &Control
关键词
双口RAM
FPGA
光纤通信
dual- ported RAM FPGA fiber- optical communication
