... standard frequency signal 标准频率信号 standard frequency source 标准频率源 standard frequency station 标准频率电台 ...
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Frequency measurement is usually implement by accounting the measured signals and standard signals, thus quantizing error becomes the main source of measuring error.
频率测量一般是通过对被测信号和标准信号计数实现，因此量化误差是引起测量误差的主要原因。
The design method of normal frequency standard signal source, which utilizes program control digital wave synthesis technology and achieved by microcontroller was given.
采用程控数字波形合成技术，通过单片微型计算机系统实现了工频标准信号源。
The main part of the platform is the production of arbitrary signal driVe source and high frequency standard signal driVe source.
诊断平台的主要部分是任意信号激励源和高频标准信号激励源的产生。
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