可见光通信中的2ASK调制解调技术与FPGA实现  

2ASK modulation and FPGA implementation in visible light communication

作　　者：王新宇 曲洪良 安子民 许凌云[1] 胡广超 WANG Xinyu;QU Hongliang;AN Ziming;XU Lingyun;HU Guangchao(Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)

机构地区：[1]南京航空航天大学,江苏南京211100

出　　处：《电子设计工程》2021年第7期166-170,共5页Electronic Design Engineering

摘　　要：针对模拟信号在可见光通信中易受干扰的问题,该文设计了一种基于振幅键控二进制数字调制(2ASK)的可见光通信系统,实现了对于基带信号的2ASK(振幅键控二进制数字调制)调制与解调。该系统利用现场可编程阵列(FPGA)作为数字式2ASK调制解调器的核心器件,实现了数字信号发送与接收。经过测试,该系统能够实现可见光信号的接收、调制、解调。解决了模拟信号易受干扰、易失真的问题,为数字式ASK、FSK等调制解调器的设计提供了设计参考。Aiming at the problem that analog signals are susceptible to interference in the visible light counterparts,this paper designs a visible light communication system based on amplitude⁃keyed binary digital modulation(2ASK),which realizes 2ASK(amplitude keyed binary digital modulation)modulation and demodulation.The system uses field programmable array(FPGA)as the core device of the digital 2ASK modem to realize the transmission and reception of digital signals.After testing,the system can receive,modulate and demodulate visible light signals.It solves the problems that analog signals are susceptible to interference and distortion,and provides design references for the design of digital ASK,FSK and other modems.

关 键 词：可见光通信 2ASK FPGA 信号调制 

分 类 号：TN929.1[电子电信—通信与信息系统]