论文部分内容阅读
设计了一套基于白光LED的可见光通信系统。阐述了传输模型和调制方式,给出了系统发射、接收的详细设计方案。系统以单片机为控制芯片,以光强调制-直接检测方法,采用NRZ-OOK调制技术实现了短距离可见光通信。实验结果表明,在一定距离内,系统具有较好的通信效果,且体积小,成本低,为远距离、高速可见光通信系统的研究提供了一定的参考。
A set of visible light communication system based on white LED is designed. The transmission model and modulation method are expounded, and the detailed design scheme of transmitting and receiving system is given. System to the microcontroller as the control chip, light intensity modulation - direct detection method, the use of NRZ-OOK modulation technology to achieve a short-range visible light communication. The experimental results show that the system has better communication effect within a certain distance, and has the advantages of small volume and low cost, and provides reference for the research of long-distance and high-speed visible light communication systems.