紫外光语音调制信号的接收和解调  

Receiving and demodulation of the modulated speech-signal in Ultraviolet domain

作　　者：青山良[1] 李晓毅[1] 肖沙里[2] 汪科[2] 

机构地区：[1]重庆通信学院,重庆400035 [2]重庆大学光电技术及系统教育部重点实验室,重庆400044

出　　处：《仪器仪表学报》2006年第z3期2032-2035,共4页Chinese Journal of Scientific Instrument

基　　金：重庆通信学院军事通信科技创新基金课题

摘　　要：紫外光的调制与接收是紫外光通信和其他常用通信方式的主要区别点。首先简要介绍了语音紫外调制信号的调制方式,然后针对调制后的语音信号的特点,提出了由AD650和锁相环芯片74HC4046相互取长补短构成的接收和鉴频解调电路,并在紫外光通信的实际应用于中取得了非常满意的效果。The main differences between the Ultraviolet Communication System and other Communication Systems lie in the ultraviolet ray modulation and receiving. First briefly introduced the ultraviolet modulation way of the pronunciation signal. Then according to the modulated pronunciation signal characteristic, we make a receivingdemodulation circuit of ultraviolet pronunciation signal by AD650 and phase-locked loop chip 74HC4046, and have obtained the extremely satisfactory effect in the ultraviolet ray communication practical application.

关 键 词：紫外光解调 滤光片 AD650 锁相环 F/V和V/F 

分 类 号：TH7-55[机械工程—仪器科学与技术]