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A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers

The frequent maneuvering of BeiDou Geostationary Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO) satellites affects the availability of real-time orbit, and decreases the accuracy and performance of positioning, navigation and time (PNT) services. BeiDou satellite maneuver information cannot be...

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Autores principales: Huang, Guanwen, Qin, Zhiwei, Zhang, Qin, Wang, Le, Yan, Xingyuan, Fan, Lihong, Wang, Xiaolei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751447/
https://www.ncbi.nlm.nih.gov/pubmed/29186058
http://dx.doi.org/10.3390/s17122761
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author Huang, Guanwen
Qin, Zhiwei
Zhang, Qin
Wang, Le
Yan, Xingyuan
Fan, Lihong
Wang, Xiaolei
author_facet Huang, Guanwen
Qin, Zhiwei
Zhang, Qin
Wang, Le
Yan, Xingyuan
Fan, Lihong
Wang, Xiaolei
author_sort Huang, Guanwen
collection PubMed
description The frequent maneuvering of BeiDou Geostationary Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO) satellites affects the availability of real-time orbit, and decreases the accuracy and performance of positioning, navigation and time (PNT) services. BeiDou satellite maneuver information cannot be obtained by common users. BeiDou broadcast ephemeris is the only indicator of the health status of satellites, which are broadcast on an hourly basis, easily leading to ineffective observations. Sometimes, identification errors of satellite abnormity also appear in the broadcast ephemeris. This study presents a real-time robust detection method for a satellite orbital maneuver with high frequency and high reliability. By using the broadcast ephemeris and pseudo-range observations, the time discrimination factor and the satellite identification factor were defined and used for the real-time detection of start time and the pseudo-random noise code (PRN) of satellites was used for orbital maneuvers. Data from a Multi-GNSS Experiment (MGEX) was collected and analyzed. The results show that the start time and the PRN of the satellite orbital maneuver could be detected accurately in real time. In addition, abnormal start times and satellite abnormities caused by non-maneuver factors also could be detected using the proposed method. The new method not only improves the utilization of observations for users with the data effective for about 92 min, but also promotes the reliability of real-time PNT services.
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spelling pubmed-57514472018-01-10 A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers Huang, Guanwen Qin, Zhiwei Zhang, Qin Wang, Le Yan, Xingyuan Fan, Lihong Wang, Xiaolei Sensors (Basel) Article The frequent maneuvering of BeiDou Geostationary Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO) satellites affects the availability of real-time orbit, and decreases the accuracy and performance of positioning, navigation and time (PNT) services. BeiDou satellite maneuver information cannot be obtained by common users. BeiDou broadcast ephemeris is the only indicator of the health status of satellites, which are broadcast on an hourly basis, easily leading to ineffective observations. Sometimes, identification errors of satellite abnormity also appear in the broadcast ephemeris. This study presents a real-time robust detection method for a satellite orbital maneuver with high frequency and high reliability. By using the broadcast ephemeris and pseudo-range observations, the time discrimination factor and the satellite identification factor were defined and used for the real-time detection of start time and the pseudo-random noise code (PRN) of satellites was used for orbital maneuvers. Data from a Multi-GNSS Experiment (MGEX) was collected and analyzed. The results show that the start time and the PRN of the satellite orbital maneuver could be detected accurately in real time. In addition, abnormal start times and satellite abnormities caused by non-maneuver factors also could be detected using the proposed method. The new method not only improves the utilization of observations for users with the data effective for about 92 min, but also promotes the reliability of real-time PNT services. MDPI 2017-11-29 /pmc/articles/PMC5751447/ /pubmed/29186058 http://dx.doi.org/10.3390/s17122761 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Huang, Guanwen
Qin, Zhiwei
Zhang, Qin
Wang, Le
Yan, Xingyuan
Fan, Lihong
Wang, Xiaolei
A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
title A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
title_full A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
title_fullStr A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
title_full_unstemmed A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
title_short A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
title_sort real-time robust method to detect beidou geo/igso orbital maneuvers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751447/
https://www.ncbi.nlm.nih.gov/pubmed/29186058
http://dx.doi.org/10.3390/s17122761
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