GSTAR: an innovative software platform for processing space geodetic data at the observation level
Abstract To meet the demands for the data combination with multiple space geodetic techniques at the observation level, we developed a new software platform with high extensibility and computation efficiency, named space Geodetic SpatioTemporal data Analysis and Research software (GSTAR). Most of th...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-07-01
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| Series: | Satellite Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s43020-023-00109-2 |
| _version_ | 1797773917304127488 |
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| author | Chuang Shi Shiwei Guo Lei Fan Shengfeng Gu Xinqi Fang Linghao Zhou Tao Zhang Zhen Li Min Li Wenwen Li Cheng Wang Yidong Lou |
| author_facet | Chuang Shi Shiwei Guo Lei Fan Shengfeng Gu Xinqi Fang Linghao Zhou Tao Zhang Zhen Li Min Li Wenwen Li Cheng Wang Yidong Lou |
| author_sort | Chuang Shi |
| collection | DOAJ |
| description | Abstract To meet the demands for the data combination with multiple space geodetic techniques at the observation level, we developed a new software platform with high extensibility and computation efficiency, named space Geodetic SpatioTemporal data Analysis and Research software (GSTAR). Most of the modules in the GSTAR are coded in C++ with object-oriented programming. The layered modular theory is adopted for the design of the software, and the antenna-based data architecture is proposed for users to construct personalized geodetic application scenarios easily. The initial performance of the GSTAR software is evaluated by processing the Global Navigation Satellite System (GNSS) data collected from 315 globally distributed stations over two and a half years. The accuracy of GNSS-based geodetic products is evaluated by comparing them with those released by International GNSS Service (IGS) Analysis Centers (AC). Taking the products released by European Space Agency (ESA) as reference, the Three-Dimension (3D) Root-Mean-Squares (RMS) of the orbit differences are 2.7/6.7/3.3/7.7/21.0 cm and the STandard Deviations (STD) of the clock differences are 19/48/16/32/25 ps for Global Positioning System (GPS), GLObal NAvigation Satellite System (GLONASS), Galileo navigation satellite system (Galileo), BeiDou Navigation Satellite System (BDS), Medium Earth Orbit (MEO), and BDS Inclined Geo-Synchronous Orbit (IGSO) satellites, respectively. The mean values of the $$X$$ X and $$Y$$ Y components of the polar coordinate and the Length of Day (LOD) with respect to the International Earth Rotation and Reference Systems Service (IERS) 14 C04 products are -17.6 microarc-second (µas), 9.2 µas, and 14.0 µs/d. Compared to the IGS daily solution, the RMSs of the site position differences in the north/east/up direction are 1.6/1.5/3.9, 3.8/2.4/7.6, 2.5/2.4/7.9 and 2.7/2.3/7.4 mm for GPS-only, GLONASS-only, Galileo-only, and BDS-only solution, respectively. The RMSs of the differences of the tropospheric Zenith Path Delay (ZPD), the north gradients, and the east gradients are 5.8, 0.9, and 0.9 mm with respect to the IGS products. The $$X$$ X and $$Y$$ Y components of the geocenter motion estimated from GPS-only, Galileo-only, and BDS-only observations well agree with IGS products, while the $$Z$$ Z component values are much nosier where anomalous harmonics in GNSS draconitic year can be found. The accuracies of the above products calculated by the GSTAR are comparable with those from different IGS ACs. Compared to the precise scientific orbit products, the 3D RMS of the orbit differences for the two Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) satellites is below 1.5 cm by conducting Precise Point Positioning with Ambiguity Resolution (PPP-AR). In addition, a series of rapid data processing algorithms are developed, and the operation speed of the GSTAR software is 5.6 times faster than that of the Positioning and Navigation Data Analyst (PANDA) software for the quad-system precise orbit determination procedure. |
| first_indexed | 2024-03-12T22:13:23Z |
| format | Article |
| id | doaj.art-e7312e5ffb74468c87d51b506f755aaa |
| institution | Directory Open Access Journal |
| issn | 2662-9291 2662-1363 |
| language | English |
| last_indexed | 2024-03-12T22:13:23Z |
| publishDate | 2023-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Satellite Navigation |
| spelling | doaj.art-e7312e5ffb74468c87d51b506f755aaa2023-07-23T11:29:02ZengSpringerOpenSatellite Navigation2662-92912662-13632023-07-014112010.1186/s43020-023-00109-2GSTAR: an innovative software platform for processing space geodetic data at the observation levelChuang Shi0Shiwei Guo1Lei Fan2Shengfeng Gu3Xinqi Fang4Linghao Zhou5Tao Zhang6Zhen Li7Min Li8Wenwen Li9Cheng Wang10Yidong Lou11Key Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyGNSS Research Center, Wuhan UniversityKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyGNSS Research Center, Wuhan UniversityGNSS Research Center, Wuhan UniversityKey Laboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information TechnologyGNSS Research Center, Wuhan UniversityAbstract To meet the demands for the data combination with multiple space geodetic techniques at the observation level, we developed a new software platform with high extensibility and computation efficiency, named space Geodetic SpatioTemporal data Analysis and Research software (GSTAR). Most of the modules in the GSTAR are coded in C++ with object-oriented programming. The layered modular theory is adopted for the design of the software, and the antenna-based data architecture is proposed for users to construct personalized geodetic application scenarios easily. The initial performance of the GSTAR software is evaluated by processing the Global Navigation Satellite System (GNSS) data collected from 315 globally distributed stations over two and a half years. The accuracy of GNSS-based geodetic products is evaluated by comparing them with those released by International GNSS Service (IGS) Analysis Centers (AC). Taking the products released by European Space Agency (ESA) as reference, the Three-Dimension (3D) Root-Mean-Squares (RMS) of the orbit differences are 2.7/6.7/3.3/7.7/21.0 cm and the STandard Deviations (STD) of the clock differences are 19/48/16/32/25 ps for Global Positioning System (GPS), GLObal NAvigation Satellite System (GLONASS), Galileo navigation satellite system (Galileo), BeiDou Navigation Satellite System (BDS), Medium Earth Orbit (MEO), and BDS Inclined Geo-Synchronous Orbit (IGSO) satellites, respectively. The mean values of the $$X$$ X and $$Y$$ Y components of the polar coordinate and the Length of Day (LOD) with respect to the International Earth Rotation and Reference Systems Service (IERS) 14 C04 products are -17.6 microarc-second (µas), 9.2 µas, and 14.0 µs/d. Compared to the IGS daily solution, the RMSs of the site position differences in the north/east/up direction are 1.6/1.5/3.9, 3.8/2.4/7.6, 2.5/2.4/7.9 and 2.7/2.3/7.4 mm for GPS-only, GLONASS-only, Galileo-only, and BDS-only solution, respectively. The RMSs of the differences of the tropospheric Zenith Path Delay (ZPD), the north gradients, and the east gradients are 5.8, 0.9, and 0.9 mm with respect to the IGS products. The $$X$$ X and $$Y$$ Y components of the geocenter motion estimated from GPS-only, Galileo-only, and BDS-only observations well agree with IGS products, while the $$Z$$ Z component values are much nosier where anomalous harmonics in GNSS draconitic year can be found. The accuracies of the above products calculated by the GSTAR are comparable with those from different IGS ACs. Compared to the precise scientific orbit products, the 3D RMS of the orbit differences for the two Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) satellites is below 1.5 cm by conducting Precise Point Positioning with Ambiguity Resolution (PPP-AR). In addition, a series of rapid data processing algorithms are developed, and the operation speed of the GSTAR software is 5.6 times faster than that of the Positioning and Navigation Data Analyst (PANDA) software for the quad-system precise orbit determination procedure.https://doi.org/10.1186/s43020-023-00109-2GSTARGNSSBDSLEOPrecise orbit determinationPrecise clock estimation |
| spellingShingle | Chuang Shi Shiwei Guo Lei Fan Shengfeng Gu Xinqi Fang Linghao Zhou Tao Zhang Zhen Li Min Li Wenwen Li Cheng Wang Yidong Lou GSTAR: an innovative software platform for processing space geodetic data at the observation level Satellite Navigation GSTAR GNSS BDS LEO Precise orbit determination Precise clock estimation |
| title | GSTAR: an innovative software platform for processing space geodetic data at the observation level |
| title_full | GSTAR: an innovative software platform for processing space geodetic data at the observation level |
| title_fullStr | GSTAR: an innovative software platform for processing space geodetic data at the observation level |
| title_full_unstemmed | GSTAR: an innovative software platform for processing space geodetic data at the observation level |
| title_short | GSTAR: an innovative software platform for processing space geodetic data at the observation level |
| title_sort | gstar an innovative software platform for processing space geodetic data at the observation level |
| topic | GSTAR GNSS BDS LEO Precise orbit determination Precise clock estimation |
| url | https://doi.org/10.1186/s43020-023-00109-2 |
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