高速光OFDM符号定时同步在FPGA上的设计与实现

摘要

提出了一种在非全局时钟光正交频分复用通信系统中的符号定时同步的高速并行算法,并阐述了该算法在现场可编程门阵列(FPGA)上的实现过程,分析频偏对系统性能的影响,并提出了补偿方法.在25km标准单模光纤通信系统中,运用该同步算法实现了2.667Gb/s数据实对传输.%Presentahigh-speed symbol timing synchronization parallel algorithm in a non-global clock optical OFDM (OOFDM)communication system has been proposed,and described the process of FPGA implementation,analyzed the impact of the frequency offset on the system,and propose the compensation method.Using the proposed synchronization algorithm,areal-time OOFDMsignal transmission at 2.667Gb/s over 25km standard single-modefiber is achieved.