signal communications system

Signal source is a very important electronic system component, often called the heart of the electronic system It is being widely used in electronic countermeasures, remote telemetry communications, instrumentation, radar, navigation and broadcasting television and other fields.

信号源是电子系统中非常重要的部件，常常被称作电子系统的心脏，目前正广泛地应用于电子对抗、遥控遥测通信、仪器仪表、雷达、导航以及广播电视等各个领域。

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This thesis researches CTCS-3 level out the ground control subsystem RBC ( Radio Block Center), which is a real-time vehicle control system based on wireless communications in the railway signal train control system. Control vehicle functions are the core components in the CTCS-3 level control system.

本论文研究的CTCS-3级列控RBC（Radio Block Center）地面子系统是铁路信号列车控制中一个基于无线通信的实时控车系统，其控车功能是CTCS-3级列控系统功能的核心组成部分。

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High-speed clock signal source is the key equipment in optical communications, in particular, high-speed optical time division multiplexing system, how to get high-speed signal source is the focus of this paper.

高速时钟信号源是光通信，特别是高速光时分复用系统中的关键设备，如何获得高速信号源是本文研究的重点。

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