摘要
通信效果不佳一直是煤矿立并通信存在的一个问题。木文介绍一种数字式立井通信系统，它用连续可变斜率的增量调制将话音信号数字化，实现数字通信，提高了通信系统的抗干扰性，较好地解决了通信效果不佳的问题。
No better effect of communication has become a problem existing in the coal shaft communication. The authors make an introduction to one kind of digital communication system used for coal shafts, in which voice signals are digitized by use of CVSD to make digital communication come true. In this way, the anti-interference of communication system willl be improved, and the problem on no better effect of communication can be solved.
出处
《矿业研究与开发》
CAS
1997年第2期40-42,共3页
Mining Research and Development
基金
煤炭工业部科技发展基金
关键词
煤矿
竖井井筒
数字通信系统
矿山通信
Shaft communication, Inductive communication, Delta modulation, Phase-locked loop
