利用GPS实现高精度时钟

Realization of Precise Clock Based on GPS

本文介绍了GPS系统的原理与特点,给出了利用GPS接收模块实现低成本和高可靠性的高精度时钟的方法,对产生的误差进行了分析,并给出了提高计时精度的具体实现方法。

This paper introduces the principle and characteristics of Globle positioning system, gives the method to get precise time using GPS module at low cost. Then it analyses the tolerance caused by the GPS clock, and gives the way to reduce the tolerance.