With the help of an ASIC MC3372 to demodulate and a Micro-controller 89C51 to decode the address signal in receiving system,a decoder is designed.

• 接收系统利用专用集成电路芯片MC3372解调,89C51单片机对地址码进行解码,并采用了多种抗干扰措施,有效地减小了误报率。