摘要
针对模拟音频信号远距离传输的弊端,设计了一套音频信号数字化传输系统。本系统由编码发送单元和解码接收单元组成,传输介质可为光纤、双绞线或同轴电缆。本文详细叙述了系统设计方案、电路工作原理及测试结果。本系统应用于多载车光学测量平台中,大大提高了对讲音频信号的传输质量和传输距离。
According to the shortcomings of analog audio signal＇ s long-distance transmission, a digital audio transmission for talkback system has been designed.The system consists of encoding transmission unit and decoding receiver unit, and the transmission medium can be loptical fiber, twisted pair or coaxial cable.This paper describes the system design, circuit theory and test results.The system has been used in multiple-vehicle optical measuring platform, greatly improving the intercom audio signal transmission quality and transmission distance.
出处
《长春理工大学学报（自然科学版）》
2012年第1期90-92,共3页
Journal of Changchun University of Science and Technology(Natural Science Edition)
