Results 21 to 30 of about 3,365,879 (300)
Sentinel-6A precise orbit determination using a combined GPS/Galileo receiver
Journal of Geodesy, 2021 The Sentinel-6 (or Jason-CS) altimetry mission provides a long-term extension of the Topex and Jason-1/2/3 missions for ocean surface topography monitoring.
O. Montenbruck +3 more
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Estimation of a General Along-Track Acceleration in the KOMPSAT-1 Orbit [PDF]
Journal of Astronomy and Space Sciences, 2002 General along-track acceleration was estimated in the KOMPSAT-1 orbit determination process. Several sets of the atmospheric drag and solar radiation pressure coefficients were also derived with the different spacecraft area.
Byoung-Sun Lee +2 more
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Conjoint Analysis of GPS Based Orbit Determination among Traditional Methods
Sakarya University Journal of Computer and Information Sciences, 2023 Satellite orbits are subject to change due to external forces. Various data gathering and processing methods exist to determine a perturbed orbit. The operators need to estimate satellite orbits for safe orbital operations.
Cevat Özarpa, İbrahim Öz
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Remote Sensing, 2023 The global navigation satellite system (GNSS) is developing rapidly, and the related market applications and scientific research are increasing. Studies based on large low Earth orbit (LEO) satellite constellations have become research hotspots.
Baopeng Xu +8 more
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Remote Sensing, 2022 The augmentation of the Global Navigation Satellite System (GNSS) by Low Earth Orbit (LEO) satellites is proposed as an effective method to improve the precision and shorten the convergence time of Precise Point Positioning (PPP).
Kan Wang +4 more
semanticscholar +1 more source
Maneuvering Spacecraft Orbit Determination Using Polynomial Representation
Aerospace, 2022 This paper proposed a polynomial representation-based method for orbit determination (OD) of spacecraft with the unknown maneuver. Different from the conventional maneuvering OD approaches that rely on specific orbit dynamic equation, the proposed method
Xingyu Zhou, Tong Qin, L. Meng
semanticscholar +1 more source
BeiDou Satellite Radiation Force Models for Precise Orbit Determination and Geodetic Applications
IEEE Transactions on Aerospace and Electronic Systems, 2021 China's BeiDou satellite navigation system (BDS) has completed its full constellation in orbit since June 2020. Services have been evolved from regional (BDS-2) to global (BDS-3).
Bing-Bing Duan +5 more
semanticscholar +1 more source
International Journal of Aerospace Engineering, 2016 The accuracy of autonomous orbit determination of Lagrangian navigation constellation will affect the navigation accuracy for the deep space probes. Because of the special dynamical characteristics of Lagrangian navigation satellite, the error caused by ...
Youtao Gao +3 more
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Two-Site Optical Observation and Initial Orbit Determination for Geostationary Earth Orbit Satellites [PDF]
Journal of Astronomy and Space Sciences, 2010 Optical observation system provides angle-only measurement for orbit determination of space object. Range measurement can be directly acquired using laser ranging or tone ranging system.
Jin Choi +4 more
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Precise Orbit Determination of BDS MEO Satellites Based on Satellite TT&C Stations
International Journal of Aerospace Engineering, 2016 A novel method, which is based on the triple-frequency combination and Space-Based Telemetry, Tracking, and Command (STT&C) stations, is proposed in this paper.
Kezhao Li +5 more
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