基于LED可见光通信系统设计与实现

为演示可见光通信原理,设计了一款简易的基于LED的可见光通信系统,系统能够将输入的音频信号调制为可见光进行无线传输;接收端将光信号转换为携带信息的电信号,电信号再经滤波、解调、放大,最终还原出输入的音频信号。

In order to demonstrate the principle of visible light communication, a simple LED visible optical communication sys- tem is designed, which can modulate the input audio signal into visible light for wireless transnfission. The receiving end converts the optical signal into an electrical signal carrying information, and the electrical signal is filtered, demodulated and amplified, and finally the input audio signal is restored.