高速铁路取消地面信号机，车载设备直接从地面设备提取信号控制机车运行。
Ground signals are removed from high-speed railway, and on-board equipment directly pick up signals from ground equipment to control train operation.
介绍了既有线ctcs2列控系统的关键地面设备，结合工程实际，介绍了胶济线试验段atp配套地面信号设备的改造。
This paper introduces key wayside equipment of CTCS2 on existing railways and describes the renovation of ATP wayside equipment in an actual engineering case on Jiao-Ji test line.
本文设计的地面信号处理电路由信号放大、混频、滤波和解调电路四部分构成，本文重点对采用MAX274集成芯片和滤波电路进行了分析和设计。
The received circuit is make up of magnify, mixing, filter the wave and demodulation circuits. MAX274 chip and wave filtering circuits is designed in detail.
本文设计的地面信号处理电路由信号放大、混频、滤波和解调电路四部分构成，本文重点对采用MAX274集成芯片和滤波电路进行了分析和设计。
The received circuit is make up of magnify, mixing, filter the wave and demodulation circuits. MAX274 chip and wave filtering circuits is designed in detail.
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