The interdisciplinary role of space geodesy—Revisited [PDF]
Journal of Geodynamics, 2010 Abstract In 1988 the interdisciplinary role of space geodesy has been discussed by a prominent group of leaders in the fields of geodesy and geophysics at an international workshop in Erice (Mueller and Zerbini, 1989). The workshop may be viewed as the starting point of a new era of geodesy as a discipline of Earth sciences.
Reiner Rummel
exaly +2 more sources
A secular variation candidate for IGRF-14 based on core-flow inversion via an ensemble Kalman smoother [PDF]
Earth, Planets and SpaceWe present a candidate mean secular variation (SV) model for the 2025.0 $$-$$ - 2030.0 period. The forecasted SV is produced with a data assimilation (DA) system built around a simple frozen-flux model of the core flow and magnetic field near the core ...
Kyle Gwirtz +2 more
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Implementation of the variation of the luni-solar acceleration into GLONASS orbit calculus [PDF]
Geodetski Vestnik, 2021 In the differential equation system describes the motion of GLONASS satellites (rus. Globalnaya Navigazionnaya Sputnikovaya Sistema, or Global Navigation Satellite System ), the acceleration caused by the luni-solar traction is often taken as a constant ...
Sid Ahmed Medjahed +3 more
doaj +1 more source
Near Real-Time Ionospheric Modeling Using a Regional GPS Network [PDF]
Journal of Astronomy and Space Sciences, 2005 Ionosphere is deeply coupled to the space environment and introduces the perturbations to radio signal because of its electromagnetic characteristics.
Byung-Kyu Choi +3 more
doaj +1 more source
RF Environment Test on a Proposed Site for the Sensor Station of the Next Generation Satellite Navigation System, GALILEO: I. The Result of the Test on the Vicinity of KVN Tamla Site in the Year of 2006 by KASI [PDF]
Journal of Astronomy and Space Sciences, 2008 As the next generation of global satellite navigation system, the Galileo project is about to witness an initial orbit validation stage as the successful test of navigation message transmission from Giove-A in 2007.
Jung Hyun Jo +12 more
doaj +1 more source
Assessment of EGNOS performance for civil aviation flight phase in the edge coverage area
International Journal of Aviation, Aeronautics, and Aerospace, 2020 The performances of the navigation systems used for different flight phases especially in the landing of an aircraft must be very high. The International Civil Aviation Organization defines the standards which must meet by any navigation systems to be ...
bilal beldjilali +2 more
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Operation of the Radio Occultation Mission in KOMPSAT-5 [PDF]
Journal of Astronomy and Space Sciences, 2010 Korea multi-purpose satellite-5 (KOMPSAT-5) is a low earth orbit (LEO) satellite scheduled to be launched in 2010. To satisfy the precision orbit determination (POD) requirement for a high resolution synthetic aperture radar image of KOMPSAT-5, KOMPSAT-
Mansoo Choi +3 more
doaj +1 more source
Multiwavelength Frequency Modulated CW Ladar: The Effect of Refractive Index
Photonics, 2020 Frequency modulated continuous wave (FMCW) laser detection and ranging is a technique for absolute distance measurements with high performances in terms of resolution, non-ambiguity range, accuracy and fast detection. It is based on a simple experimental
Mariano Barbieri +3 more
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There is no six-year periodicity in tidal forcing [PDF]
Scientific ReportsR. D. Ray, V. Viswanathan, B. F. Chao
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Receiver DCB Estimation and Analysis by Types of GPS Receiver [PDF]
Journal of Astronomy and Space Sciences, 2010 This paper analyzes that the global positioning system (GPS) receiver differential code bias (DCB) has effect on the estimation the ionosphere total electron content (TEC). The data from nine permanent GPS sites of the Korea Astronomy and Space Science
Byung-Kyu Choi +2 more
doaj +1 more source