基于非线性压缩的OOFDM系统的FPGA实现  

FPGA implementation of OOFDM system based on nonlinear compression

作　　者：冯群翔 郑兴 苏江涛 孙玲玲 唐建明 FENG Qunxiang;ZHENG Xing;SU Jiangtao;SUN Lingling;TANG Jianming(Key Laboratory of RF Circuits and Systems of Ministry of Education,Hangzhou Dianzi University,Hangzhou 310018,China;School of Electronic Engineering,Bangor University,Bangor LL571UT,UK)

机构地区：[1]杭州电子科技大学射频电路与系统教育部重点实验室,杭州310018,中国 [2]班戈大学电子工程学院,班戈LL571UT,英国

出　　处：《光通信技术》2020年第6期58-62,共5页Optical Communication Technology

基　　金：浙江省自然科学基金(项目号:LY17F010017、LY17F010016)资助;浙江省钱江人才计划(项目号:QJD1402001)资助;国家自然科学基金(项目号:61331006、61827806)资助;国家某项目资助。

摘　　要：针对光正交频分复用(OOFDM)系统中高峰均比的问题,利用坐标旋转数字计算机(CORDIC)算法进行非线性压缩,并采用现场可编程门阵列(FPGA)进行硬件实现,在Matlab上对从FPGA抓取的信号进行分析,计算出信号的峰均比以及通信系统的误码率,并与传统OOFDM系统进行了对比分析。实验结果表明该算法能有效抑制信号的峰均比,保证了通信质量。Aiming at the problem of high peak to average power ratio in optical orthogonal frequency division multiplexing(OOFDM)system,the coordinate rotation digital computer(CORDIC)algorithm is used for nonlinear compression,and field programmable gate array(FPGA)is used for hardware implementation.The signal captured from FPGA is analyzed on Matlab,the peak to average power ratio and bit error rate of communication system are calculated,and compared with the traditional OOFDM system.Experimental results show that the algorithm can effectively suppress the peak to average power ratio of the signal and ensure the communication quality.

关 键 词：光正交频分复用 峰值平均功率比 现场可编程门阵列 

分 类 号：TN914[电子电信—通信与信息系统]