Accuracy analysis on C/A code and P(Y) code pseudorange of GPS dual frequency receiver and application in point positioning
When the Anti-Spoofing (A-S) is active,the civilian users have some difficulties in using the P(Y) code for precise navigation and positioning.Z-tracking technique is one of the effective methods to acquire the P(Y) code.In this paper,the accuracy of pseudoranges from C/A code and P(Y) code for dual frequency GPS receiver is discussed.The principle of measuring the encrypted P(Y) code is described firstly,then a large data set from IGS tracking stations is utilized for analysis and verification with the help of a precise point positioning software developed by authors.Especially,P(Y) code pseudoranges of civilian GPS receivers allow eliminating/reducing the effect of ionospheric delay and improve the precision of positioning.The point positioning experiments for this are made in the end.
C/A code P(Y) code Z-tracking point positioning
Xiuying Peng Shijie Fan Jiming Guo
College of Geo-Resources and Information,China University of Petroleum,Dongying,Shandong,257062,P.R. School of Geodesy and Geomatics,Wuhan University,Wuhan,Hubei,430079,P.R.China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）