Zobrazeno 1 - 10
of 5 526
pro vyhledávání: '"Ephemeris"'
Autor:
Medjahed, Sid Ahmed
Publikováno v:
International Journal of Engineering & Geosciences; Jul2024, Vol. 9 Issue 2, p256-263, 8p
Publikováno v:
Radio Physics and Radio Astronomy, Vol 29, Iss 1, Pp 026-037 (2024)
Subject and Purpose. The present paper is concerned with sea wave diagnostics by signals from artificial satellites in a bistatic radar scheme using the grazing radio-wave propagation and a diffuse component of the signal reflected off the sea surfac
Externí odkaz:
https://doaj.org/article/0ea96d639f454c4db01267834575567c
Autor:
Jingjing Wang, Chao Zhou
Publikováno v:
IEEE Access, Vol 12, Pp 52934-52940 (2024)
Due to system anomalies, BeiDou navigation satellite system (BDS) sometimes updates the broadcast ephemeris at non-integral hours. The gross errors contained in the non-integer-hour data blocks of broadcast ephemeris will lead to the signal-in-space
Externí odkaz:
https://doaj.org/article/3197b7cb273c4a9ba308de73883808b0
Publikováno v:
International Journal of Digital Earth. Jun2018, Vol. 11 Issue 6, p546-557. 12p.
Autor:
Gryb, Sean, author, Thébault, Karim P. Y., author
Publikováno v:
Time Regained : Volume 1: Symmetry and Evolution in Classical Mechanics, 2023, ill.
Externí odkaz:
https://doi.org/10.1093/oso/9780198822066.003.0012
Autor:
Xie Xiaogang1 jasonxx@163.com, Lu Mingquan1
Publikováno v:
Journal of Engineering Science & Technology Review. 2017, Vol. 10 Issue 4, p65-71. 7p.
Publikováno v:
Remote Sensing, Vol 16, Iss 13, p 2366 (2024)
The high-precision satellite velocities and accelerations calculated by the Global Navigation Satellite System (GNSS) are essential for tasks such as airborne gravity data processing. Users generally interpolate satellite positions in the precise eph
Externí odkaz:
https://doaj.org/article/7f7d15940d6a45748c4eda67a96a75e2
Publikováno v:
Universe, Vol 10, Iss 5, p 219 (2024)
Space-based gravitational wave detection is extremely sensitive to disturbances. The Keplerian configuration cannot accurately reflect the variations in spacecraft configuration. Planetary gravitational disturbances are one of the main sources. Numer
Externí odkaz:
https://doaj.org/article/c86d163c185244e2beea0662cc563e1a