摘要
分析了GPS时间系统的结构组成和工作原理,对GPS时间系统、协调世界时和国际原子时的关联性进行了探讨。进一步阐述了GPS在全球时间比对中的重要作用,给出GPS共视和GPS载波时间比对两种时间比对方法的数学模型,并利用实际比对数据对二者精度进行分析,表明GPS共视与载波时间比对技术具有良好的频率稳定度。
This paper analyzed the structure and theory of the time system of GPS. The interaction between GPST, UTC and TAI was introduced. These time systems have different mechanisms even though they are associated. The thesis expounded the important role that GPS plays in the worldwide time comparing. The mathematical models of GPS CV and GPS phase technology was developed, then we computed their precision using observation. Result shows the frequency stability of GPS CV and GPS phase technology is good.
出处
《地理空间信息》
2009年第3期30-32,共3页
Geospatial Information
基金
国家自然科学基金资助项目(40774031)
