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Accuracy analysis of GPS broadcast ephemeris in the 2036th GPS week
Ma,Lihua; Wang,Xiaolan; Li,Shengming
2019-10-01
Source PublicationIOP Conference Series: Materials Science and Engineering
ISSN1757-8981
Volume631Issue:4
AbstractAbstract Satellite orbit error is one of main sources in Global Positioning System (GPS) receiver positioning error. Using broadcast ephemeris in navigation message, the receiver can calculate spatial position of GPS satellites, then combine pseudorange measurements and achieve positioning solution. In this work, taking broadcast ephemeris in the 2036th GPS week as an example, orbital position of the satellite with the pseudo-random-noise (PRN) code 4 is calculated. Furthermore, using GPS precision ephemeris as a reference, orbital error of the broadcast ephemeris for the PRN 4 satellite is investigated. The results show that the maximum difference of the satellite in three directions is 36 meters, 57 meters and 39 meters, respectively. The three-dimension distance deviating from precision ephemeris is at most 61 meters. The maximum deviation occurs only during certain time periods in the whole GPS week.
DOI10.1088/1757-899X/631/4/042013
Language英语
WOS IDIOP:1757-8981-631-4-042013
PublisherIOP Publishing
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/28641
Collection中国科学院国家天文台
AffiliationNational Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ma,Lihua,Wang,Xiaolan,Li,Shengming. Accuracy analysis of GPS broadcast ephemeris in the 2036th GPS week[J]. IOP Conference Series: Materials Science and Engineering,2019,631(4).
APA Ma,Lihua,Wang,Xiaolan,&Li,Shengming.(2019).Accuracy analysis of GPS broadcast ephemeris in the 2036th GPS week.IOP Conference Series: Materials Science and Engineering,631(4).
MLA Ma,Lihua,et al."Accuracy analysis of GPS broadcast ephemeris in the 2036th GPS week".IOP Conference Series: Materials Science and Engineering 631.4(2019).
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