基于AVR单片机的紫外语音通信系统解调技术  

Research on Demodulation Technology of Ultraviolet Communication System Based on AVR microcontroller

作　　者：高红杰[1] 肖沙里[1] 向平[1] 

机构地区：[1]重庆大学光电技术及系统教育部重点实验室,重庆400044

出　　处：《重庆工学院学报（自然科学版）》2008年第8期104-107,共4页Journal of Chongqing Institute of Technology

基　　金：某军工专项项目(JW20**016)

摘　　要：应用调频技术实现对电光信号的调制转换,再通过接收频率变换的紫外光信号进行光电转换,还原出原始信号.提出了一种用AVR单片机解调来提高紫外通信系统的传输速率的方法,采用AVR单片机设计解调电路,较好地处理2FSK信号的过渡带问题,使传输的信息经调制后能正确解调,传输速率可达到4.8 kbit/s,成功实现了实时语音通信.Making use of frequency modulation to implement elect w-optic modulation, and receiving ultraviolet hght that frequency is variable, signal can been demodulated, In this paper, transmission rate of ultraviolet communication system has been enhanced by using a kind of demodulation method with AVR microcontroller; this method , which has properly dealt with the transition area problems of 2FSK signals, has properly demodulated the original signals from the modulated signals. The transmission rate achieves 4.8 kbit/s, and thus realizes real time speech communication.

关 键 词：紫外通信 非视距通信 误码率 实时语音通信 

分 类 号：TN914.2[电子电信—通信与信息系统]