Results 21 to 30 of about 5,510 (299)
Calibration of GRACE on-board accelerometers for thermosphere density derivation
Geo-spatial Information Science, 2022 Low Earth Orbit satellite on-board accelerometers play an important role in improving our understanding of thermosphere density; however, the accelerometer-derived densities are subject to accelerometer calibration errors.
Min Li +5 more
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Precise Orbit Determination of BDS-2 and BDS-3 Using SLR
Remote Sensing, 2019 The BeiDou Navigation Satellite System (BDS) of China is currently in the hybrid-use period of BDS-2 and BDS-3 satellites. All of them are equipped with Laser Retroreflect Arrays (LRAs) for Satellite Laser Ranging (SLR), which can directly obtain an ...
Honglei Yang +4 more
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Analysis of the Impact of Atmospheric Models on the Orbit Prediction of Space Debris
Sensors, 2023 Atmospheric drag is an important influencing factor in precise orbit determination and the prediction of low-orbit space debris. It has received widespread attention.
Yigao Ding +6 more
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LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges
Geo-spatial Information Science, 2021 With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge +8 more
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BDS Orbit Maneuver Detection Based on Epoch-Updated Orbits Estimated by SRIF
Remote Sensing, 2023 The orbit maneuver detection is crucial in Global Navigation Satellite System (GNSS) precise orbit determination, which is necessary for adjusting data processing strategies.
Zhiwei Qin +5 more
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GSTAR: an innovative software platform for processing space geodetic data at the observation level
Satellite Navigation, 2023 To meet the demands for the data combination with multiple space geodetic techniques at the observation level, we developed a new software platform with high extensibility and computation efficiency, named space Geodetic SpatioTemporal data Analysis and ...
Chuang Shi +11 more
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Satellite Positioning and Orbit Determination System (SPODS): Introduction and Evaluation [PDF]
Journal of Geodesy and Geoinformation Science, 2018 The Satellite Positioning and Orbit Determination System (SPODS) is a software package for GNSS positioning/orbit determination, developed by the Xi’an Research Institute of Surveying and Mapping.
Ziqing WEI,Rengui RUAN,Xiaolin JIA,Xianbing WU,Xiaoyong SONG,Yue MAO,Laiping FENG,Yongxing ZHU
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Precise orbit determination for GRACE
Advances in Space Research, 2003 Abstract The twin, co-orbiting GRACE (Gravity Recovery and Climate Experiment) satellites were launched in March 2002. The primary objective of the GRACE mission is to determine the Earth's gravity field and its temporal variations with unprecedented accuracy. To satisfy this objective as well as other applications (e.g.
Kang, Z., Nagel, P., Pastor, R.
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Precise Orbit Determination of GPS-36 Satellite Using Satellite Laser Ranging [PDF]
Journal of Astronomy and Space Sciences, 2002 Satellite laser ranging is a technique for precisely measuring the range between a laser station and a satellite that is equipped with retro-reflectors. SLR technique was first used for Beacon-B satellite in 1964 with the ranging accuracy of meter level.
Hyung-Chul Lim +4 more
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Remote Sensing, 2021 The precise orbit determination (POD) accuracy of the Chinese BeiDou Navigation Satellite System (BDS) is still not comparable to that of the Global Positioning System because of the unfavorable geometry of the BDS and the uneven distribution of BDS ...
Min Li +6 more
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