LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique
LEO (Low Earth Orbit)-based PNT (Positioning, Navigation and Timing) has become a research topic of much interest and a focus of development. As LEO satellites for PNT are expected to independently provide space-time references in the future, similar to Global Navigation Satellite System (GNSS) sate...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | SoftwareX |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352711024003509 |
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| author | Zhao Xi Yu Baoguo Luo Bin |
| author_facet | Zhao Xi Yu Baoguo Luo Bin |
| author_sort | Zhao Xi |
| collection | DOAJ |
| description | LEO (Low Earth Orbit)-based PNT (Positioning, Navigation and Timing) has become a research topic of much interest and a focus of development. As LEO satellites for PNT are expected to independently provide space-time references in the future, similar to Global Navigation Satellite System (GNSS) satellites, the accurate determination of their broadcast ephemerides becomes crucial. This paper proposes the open-source software LOBEFIT (LeO satellite Broadcast Ephemeris Fitting), which utilizes the automatic differentiation technique to fit LEO satellite broadcast ephemeris parameters. The primary advantage of this software lies in its ability to allow users to focus on implementing various broadcast ephemeris models without the need to manually derive complex partial derivatives with respect to broadcast ephemeris parameters. Centimeter-level fitting accuracy can be achieved by selecting appropriate broadcast models for different LEO satellites using this software. The paper provides the description, use and impact of the LOBEFIT software in satellite navigation. |
| format | Article |
| id | doaj-art-7f8497fdfde04a14a7c7cda1926e4ddb |
| institution | DOAJ |
| issn | 2352-7110 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | SoftwareX |
| spelling | doaj-art-7f8497fdfde04a14a7c7cda1926e4ddb2025-08-20T03:11:33ZengElsevierSoftwareX2352-71102025-02-012910198010.1016/j.softx.2024.101980LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation techniqueZhao Xi0Yu Baoguo1Luo Bin2Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaThe 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang, 050011, China; State Key Laboratory of Satellite Navigation System and Equipment Technology, Shijiazhuang, 050011, ChinaState Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, 430079, ChinaLEO (Low Earth Orbit)-based PNT (Positioning, Navigation and Timing) has become a research topic of much interest and a focus of development. As LEO satellites for PNT are expected to independently provide space-time references in the future, similar to Global Navigation Satellite System (GNSS) satellites, the accurate determination of their broadcast ephemerides becomes crucial. This paper proposes the open-source software LOBEFIT (LeO satellite Broadcast Ephemeris Fitting), which utilizes the automatic differentiation technique to fit LEO satellite broadcast ephemeris parameters. The primary advantage of this software lies in its ability to allow users to focus on implementing various broadcast ephemeris models without the need to manually derive complex partial derivatives with respect to broadcast ephemeris parameters. Centimeter-level fitting accuracy can be achieved by selecting appropriate broadcast models for different LEO satellites using this software. The paper provides the description, use and impact of the LOBEFIT software in satellite navigation.http://www.sciencedirect.com/science/article/pii/S2352711024003509Leo satellitesBroadcast ephemerisAutomatic differentiationFitting accuracy |
| spellingShingle | Zhao Xi Yu Baoguo Luo Bin LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique SoftwareX Leo satellites Broadcast ephemeris Automatic differentiation Fitting accuracy |
| title | LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique |
| title_full | LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique |
| title_fullStr | LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique |
| title_full_unstemmed | LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique |
| title_short | LOBEFIT: LEO satellite broadcast ephemeris fitting open-source software based on automatic differentiation technique |
| title_sort | lobefit leo satellite broadcast ephemeris fitting open source software based on automatic differentiation technique |
| topic | Leo satellites Broadcast ephemeris Automatic differentiation Fitting accuracy |
| url | http://www.sciencedirect.com/science/article/pii/S2352711024003509 |
| work_keys_str_mv | AT zhaoxi lobefitleosatellitebroadcastephemerisfittingopensourcesoftwarebasedonautomaticdifferentiationtechnique AT yubaoguo lobefitleosatellitebroadcastephemerisfittingopensourcesoftwarebasedonautomaticdifferentiationtechnique AT luobin lobefitleosatellitebroadcastephemerisfittingopensourcesoftwarebasedonautomaticdifferentiationtechnique |