【摘要】 研制了最小光通信实验系统。该系统由数字信号源电路、光发射模块电路和光接收模块电路组成。实验表明,利用该系统可以完成红外光信号的信号调制、无线发射和无线接收及处理等过程,能够满足光通信专业实验教学的需要。同时,结合单片机技术,应用该系统实现了移动物体的计数、测速和监视报警等功能。更多还原

【Abstract】 A minimum optical communication experimental system was developed.The system consists of digital signal source circuit,light emission module and light receiving module.The experiments show that the system can complete the modulation of infrared signal,wireless transmitting/receiving processing and other wireless process.It can satisfy the need of experimental teaching of optical communication specialty.Meanwhile,with combining single chip microcomputer,it can implement the functions of counting moving objects,measuring velocity and alerting.更多还原