基于GPS校准晶振的高精度时钟的设计

Design of High Precision Clock Based on the GPS Disciplined Oscillator

文章结合高精度晶振无随机误差和GPS秒时钟无累计误差的特点,采用GPS测量监控技术,对高精度晶体振荡器的输出频率进行精密测量和调节,使晶振的输出频率同步在GPS系统上,从而提供高精度的时钟信号。根据此方法研制了具有高性价比的高精度时钟发生装置,并成功的应用于通信系统中。

As the GPS-clock is free of cumulative error and the high precision crystal oscillator is free of random error,the two clocks can be effectively combined.By adopting advanced GPS monitoring and controlling technology,the output frequency of the crystal oscillator is measured and adjusted.The high precision clock with high performance price ratio is designed,which has been successfully applied in communication system.