查询词典 signalling

This paper presents the research and design of 25Hz AC counting code signalling digital filter.

介绍25Hz 交流计数电码信号数字滤波器的研究设计。

Integrated Services Digital Network - Completion of Calls to Busy Subscriber supplementary service; Digital Subscriber Signalling System No.

综合业务数字网。忙音用户呼叫完成的补充服务。

Experiments showed that the performance of the designed FIR type 25Hz AC counting signalling digital filter can satisfy the particular needs of the cab signals.

通过实验验证了所设计的 FIR 型25Hz 交流计数电码信号数字滤波器的性能可以满足机车信号的特殊要求。

DIGITAL SUBSCRIBER SIGNALLING SYSTEM NUMBER ONE (DSS1) PROTOCOL.

数字用信号系统数字(DSS1)协议。

Digital subscriber signalling system no One (DSS1) protocol.

数字用户信令系统No.1(DSS1)协议。

Digital substriber Signalling System n o one protocol.

数字用户信号系统第1号协议(DSS1)。

Integrated Services Digital Network - Signalling System No.

综合业务数字网。

Integrated Service Digital Network - Signalling System No.

综合业务数字网。

Integrated Services Digital Network - Completion of Calls on No Reply supplementary service; Digital Subscriber Signalling System No.

综合业务数字网。无应答呼叫接通补充业务。

As a private mobile communication system, The digital trunkingmobile communication system was boomed in 1990's, and before this, the appliedprivate mobile communication systems in market are almost the analog systemwith analog voice and digital signalling. And there are no data referring to thesystem design and parameters chosen. It includes the wireless channel accessalgorithm of the mobile terminals, single base station capacity in large regional networks, link designing schemes between the switching control center and basestation as well as the study of the service quality for the multiple traffic. Theseindispensable parameters in design a digital trunking communication system arestudied in this dissertation and some instructive achievements can be got. To provethe correction of the theoretical study, the result was tested with the popularsystem of pan-European digital trunking communication system.

数字集群移动通信系统是九十年代中、后期兴起的专用移动通信系统的一种新体制，在此之前国际、国内市场使用的都是数字信令、模拟话音集群移动通信系统其涉及领域是模拟体制，对数字集群的系统设计的有关参数、方法等的选用及其性能表现并无成熟的文献可供参考，如移动终端的无线信道接入算法、大区组网单基站系统的容量、基站和交换控制中心间的链路设计和多业务种类的服务质量等都是数字集群基站子系统进行设计和开发必须解决的关键技术。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。