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。
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