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Broadcast ephemerides for LEO augmentation satellites based on nonsingular elements
Meng, Lingdong1,2; Chen, Junping2,3; Wang, Jiexian1; Zhang, Yize2
2021-10-01
Source PublicationGPS SOLUTIONS
ISSN1080-5370
Volume25Issue:4Pages:11
AbstractLow earth orbit (LEO) satellite constellations have the potential to augment global navigation satellite system services. Among the ongoing tasks of LEO-based navigation, providing broadcast ephemerides that satisfy the accuracy requirement for positioning, navigation, and timing is one of the most critical prerequisites. Singularities can occur when fitting broadcast ephemeris parameters in the case of a small eccentricity or small or large inclination. We choose an improved nonsingular element set for the LEO broadcast ephemeris design. We establish suitable broadcast ephemeris models, considering the fit accuracy, number of parameters, orbital altitude, and inclination. The fit accuracy using different orbital altitudes, orbital inclinations, and eccentricities suggests that the optimal parameters are (n) over dot., n, C-rc3, C-rs3, C-lambda c3, and C-lambda s3, together with the basic broadcast ephemeris model. After adding these six parameters, a fit accuracy of better than 10 cm can be achieved with a 20 min arc length and 500-1400 km orbital altitudes. The effects of the number of parameters, orbital altitude, inclination, and eccentricity on the fit accuracy are discussed in detail. Finally, the performance is validated with real LEO satellites to confirm the effectiveness of the proposed method.
KeywordNonsingular orbital elements set LEO navigation augmentation Kepler ephemeris model Broadcast ephemeris
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province
DOI10.1007/s10291-021-01162-7
WOS KeywordPERFORMANCE EVALUATION
Language英语
Funding ProjectNational Natural Science Foundation of China[11673050] ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone[ZJ2018-ZD-009] ; National Key R&D Program of China[2018YFB0504300] ; Key R&D Program of Guangdong province[2018B030325001]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; Key Program of Special Development funds of Zhangjiang National Innovation Demonstration Zone ; National Key R&D Program of China ; National Key R&D Program of China ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000678693200001
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76410
Collection中国科学院国家天文台
Corresponding AuthorChen, Junping
Affiliation1.Tongji Univ, Coll Surveying & Geoinformat, Shanghai 200092, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Meng, Lingdong,Chen, Junping,Wang, Jiexian,et al. Broadcast ephemerides for LEO augmentation satellites based on nonsingular elements[J]. GPS SOLUTIONS,2021,25(4):11.
APA Meng, Lingdong,Chen, Junping,Wang, Jiexian,&Zhang, Yize.(2021).Broadcast ephemerides for LEO augmentation satellites based on nonsingular elements.GPS SOLUTIONS,25(4),11.
MLA Meng, Lingdong,et al."Broadcast ephemerides for LEO augmentation satellites based on nonsingular elements".GPS SOLUTIONS 25.4(2021):11.
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