摘要
无线电对讲系统具有其他通信系统不可替代的实际作用,因而具有重要的研究和应用价值。随着通信技术的进步,数字化对讲系统受到越来越广泛的关注。为此,针对ETSI数字对讲标准DMR和现有模拟对讲系统进行详细分析,阐述数字化对讲系统的优势和所面临的问题。
Compared with other communication systems,wireless intercom system has irreplaceable value.With the development of communication technology,the digital intercom system attracts more concerns.The authors give a detailed comparison and analysis of digital intercom system defined by ETSI and current analog intercom system and present the advantages and challenges of DMR.
出处
《铁道通信信号》
2012年第2期67-71,共5页
Railway Signalling & Communication
关键词
对讲系统
模拟传输
数字化技术
数字移动无线技术
Intercom system
Analog transmission
Digital technology
DMR（Digital Mobile Radio）
