单站GPS载波平滑伪距精密授时研究  

Precise Timing Using Carrier Phase Smoothed Pseudorange from Single Receiver

作　　者：张小红[1] 程世来[1] 李星星[1] 郭斐[1] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2009年第4期463-465,共3页Geomatics and Information Science of Wuhan University

基　　金：国家973计划资助项目(2003CB716705);国家863计划资助项目(2006AA12Z325)

摘　　要：给出了单站GPS载波相位平滑伪距授时的原理和数学模型,详细分析了单站GPS载波相位平滑伪距授时的技术难点和授时精度评定的表征量,并编程对IGS站观测数据进行处理。实验结果表明,单站GPS载波相位平滑伪距精密授时的绝对钟差精度可达到ns级。Compared with the tranditional psudo-range Common-View timing method, the advantage and the significance of the precise timing with Stand-along receiver have been explicitly exhibited in the first part of this paper. The theory and the mathematical model of single point carrier phase smoothed psudo-range timing is then proposed. In the following parts the author analyzes the difficulties of the techniques and gives the precise estimation method and its indicator. Finally, along with the practical programme served for the research, we test and demonstrate the Point Precise Phase smoothed Psudo-range timing with experiments. The results supports that the absolute timing precision of the method could be as high as ns level.

关 键 词：GPS 载波平滑伪距 单站 授时 

分 类 号：P228.41[天文地球—大地测量学与测量工程]