2023年第1期基于OOK调制的水下高速激光通信系统设计与实现Designandimplementationofunderwaterhigh-speedlasercommunicationsystembasedonOOKmodulationGONGCongan1,HUFangren1*,ZHAOXiaoyan2,ZHOUJun2（1.SchoolofElectronicandOpticalEngineering,NanjingUniversityofPostsandTelecommunications,Nanjing210023,China;2.NanjingAdvancedTechnologyLaserResearchInstitute,Nanjing210038,China）Abstract:Inordertomeettherequirementsofunderwaterhigh-speedlasercommunicationandimprovetheerrorcodeperfor-manceofthesystem,anunderwaterhigh-speedlasercommunicationsystembasedonon-offkeying（OOK）modulationisde-signed.Theslidingwindowaveragefilteringmethodisusedtodenoisethereceiveddata,andthethresholddecisionismadeafterthejointthresholdisobtainedaccordingtothefixedthresholdandtheadaptivethreshold.Thesystemtestresultsshowthatthebiterrorperformanceofthejointthresholddecisionmodeisbetterthanthatofthefixedthresholddecisionmodeandtheadaptivethresholddecisionmode.Thebiterrorrateofthesystemisabout0and10-2respectivelywhencommunicatingwithcleanwaterandwatercontainingasmallamountofsuspendedimpurities.Keywords:visiblelightcommunication,on-offkeying,jointjudgment,datapreprocessing,anti-interferencecapability龚从安1，胡芳仁1*，赵晓燕2，周军2（1.南京邮电大学电子与光学工程学院，南京210023；2.南京先进技术激光研究院，南京210038）摘要：为了满足水下高速激光通信的需求和提高系统的误码性能，设计一种基于二进制开关键控（OOK）调制的水下高速激光通信系统，采用滑窗平均滤波方法对接收数据进行去噪处理，根据固定值阈值和自适应阈值方式求取联合阀值后进行门限判决。系统测试结果表明：联合阈值判决方式的误码性能优于固定阈值判决和自适应阈值判决方式；系统在洁净水、水中含少量悬浮杂质2种水质通信时的误码率分别为0、10-2左右。关键词：可见光通信；开关键控；联合判决；数据预处理；抗干扰能力中图分类号：TN92文献标志码：A文章编号：1002-5561（2023）01-0013-04DOI：10.13921/j.cnki.issn1002-5561.2023.01.003开放科学（资源服务）标识码（OSID）：引用本文：龚从安，胡芳仁，赵晓燕，等.基于OOK调制的水下高速激光通信系统设计与实现[J].光通信技术，2023，46（6）：13-16.0...
