At the last, we designed a UM71 track signal parameters detecting system base on TMS320F2812, and implemented part functions of the frequency-shift track signal detecting.
最后我们以TMS320F 2812为核心设计了UM 71轨道信号的参数检测系统，并部分实现了移频轨道信号的检测功能。
Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop (PLL) technique and a singe chip microcomputer.
利用锁相环(LL)窄带跟踪特性，与单片机结合，实现自动闭塞系统移频信号解调。
According to the characteristics of frequency shift track circuits, this paper has analyzed signal acquisition methods of voltage and current measurement on line.
根据移频轨道电路的特点，本文分析了电压、电流在线测量过程中采用的信号采集技术。
Based on the characteristics of Domestic frequency shift key track signal, this paper presents a kind of appropriate detection method for our national train signal — Time-frequency analysis.
根据移频轨道信号的特点，本文提出了一种适合我国铁路信号的检测方法——时频分析的方法。
Based on the characteristics of Domestic frequency shift key track signal, this paper presents a kind of appropriate detection method for our national train signal — Time-frequency analysis.
根据移频轨道信号的特点，本文提出了一种适合我国铁路信号的检测方法——时频分析的方法。
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