基于PIC单片机的PPM调制激光无线通信收发器

A PPM Wireless Laser Communication Transceiver Based on PIC MCU

利用PIC中档单片机优越特性,实现参数全部由软件设定的PPM信号调制;用软件同时完成PPM 信号的编码和解码。以单片机最小系统实现一个简洁可靠、成本低廉的PPM调制全双工激光无线通信收发器,该收发器为两个数据终端之间提供一条透明的通用异步串行数据传输通道。

With the high performance of PIC mid-range MCU family, the parameters of PPM signal were fully cnstomized by software programming; the encoding and decoding of PPM signal was implemented simultaneously on a single MCU chip by software in stead of two parted hardware modules. Thus a full duplex PPM wireless laser communication transceiver was implemented on a minimum MCU system with reliable quality and low cost. The transceivers act as a transparent data channel of universal asynchronous receiver transmitter （UART）, which connects two data terminal equipments.