用51单片机模拟红外发送和接收解码的过程，软件实现红外发送，接收端实现红外数据解码，并用数码管显示出来，主要是对红外PWM(脉冲宽度调制) 和PPM(脉冲位置调制) 两种形式编码的研究-Simulation of infrared transmission with 51 single-chip microcomputer and the decoding process, software realization of infrared transmission, infrared recei