双音复频技术在井下数据传输中的应用研究  

The Investigation of Applying Dual Tone Multi-frequency to Underground Data Transmission in Mine

作　　者：李阳铭[1] 韩江洪[1] 金浩[1] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009

出　　处：《煤矿机电》2005年第6期7-10,共4页Colliery Mechanical & Electrical Technology

基　　金：安徽省"十五"二期科技攻关项目(编号:040120492)

摘　　要：针对煤矿井下生产环境对控制系统的可靠性、实时性要求高的情况,将双音复频技术应用于强噪声环境中低速率信号的远距离传输。本文分析、论证了双音复频信号具有抵御环境噪声的能力,并且以双音复频专用芯片MT8888为例,设计、实现了利用双音复频技术进行信号传输的方法。According to the case that control systems are required high reliability and real time reaction in underground production environment, the dual tone multi-frequency technique is applied to long distance transmission of low-rate signals in the strong noise environment. This paper analyzes and proves the anti-noise capability of dual tone multi-frequency way of transmitting signals by dual ton signals, takes the example of special MT8888 chip to design and realize the e multi-frequency technique.

关 键 词：双音复频 噪声分析 低速率信号 远距离传输 

分 类 号：TN912.11[电子电信—通信与信息系统]