The precondition of accuracy control of time service signal is established on the foundation of time service signal's precise calibration.
授时信号精确控制的前提建立在授时发播信号精确定标的基础之上。
In this paper a circuit of filter and shaping is provided for obtaining a better time service signal of the China Central Radio Station from a noised record.
本文给出了一个滤波整形电路,以便从干扰记录中,尽可能干净地提取出中央台授时信号。
According to the invention, each set of multi-functional meter adjusting platform is not required to be installed with a GPS time service signal receiving system, and the resource is saved.
本发明不必为每台多功能校表台都配备有GPS授时信号接收系统,节约了资源。
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