数字信令 meaning in English

digital signalling

Speech digit signalling
话音数字信令
After implementing digital signaling system into analogue trunking system , we get these improvements : more reliable connection between users , higher speed of connection , and more functions in trunking system . mdc1200 signaling system is one kind of this signaling , which is developed by motorola for improving the performance of its analogue trunking system
模拟集群通信是指它采用模拟语音进行通信，整个系统内没有数字技术，但后来为了使通信连接更为可靠，模拟集群通信系统也采用了数字信令，使集群通信系统的用户连接比较可靠，连通的速度有所提高，而且系统功能也相应增多。
First , it introduces the corresponding knowledge , technical roadmap of trunking system , and digital trunking system signaling . second , it presents the encoding , decoding , modulation , demodulation parts and several signaling functions of mdc1200 signaling system . in addition , it analyzes some signaling data packet formats
本文首先对集群通信的相关知识、发展趋势以及集群通信数字信令进行了介绍，接着对mdc1200信令的编码、解码过程，调制、解调方式以及各种信令功能的信令数据格式进行了详细地分析。