摘要
本文从一个简单、完善的自动机模型出发,介绍了一种正确获取GPS同步时钟的方法,并将其应用于cdma2000-1x系统中。数学推导表明,采用本文提供的算法获取的GPS同步时钟可以有效减少由于GPS时钟硬件的不稳定因素而造成的时钟精度损失,并能周期性地校正所取得的GPS时钟,控制时钟误差精度在100ns范围内。此算法实现简单,计算结果表明,该算法可以大幅度提高时钟精度。
This paper introduces a method to capture accurately GPS clock under a simple and perfect automatism model.Then it is applied to the cdma2000-1x system.Mathematic derivations show that the GPS clock obtained with the proposed algorithm can reduce the clock precision loss resulting from instability factors of the hardware of GPS clock.And it can adjust periodically GPS clock and control the clock precision in to the range of 100ns.The algorithm is very simple.Calculation results demonstrate that the proposed algorithm can improve clock precision greatly.
出处
《电讯技术》
2005年第3期59-63,共5页
Telecommunication Engineering
基金
国家863计划项目"cdma2000试验系统研究与开发"(MII-C3G-863-317-03-01-02-20)
