Results 11 to 20 of about 19,382,518 (277)
Real-Time Kinematic Precise Orbit Determination for LEO Satellites Using Zero-Differenced Ambiguity Resolution [PDF]
Remote Sensing, 2019 The rapid growing number of earth observation missions and commercial low-earth-orbit (LEO) constellation plans have provided a strong motivation to get accurate LEO satellite position and velocity information in real time. This paper is devoted to improve the real-time kinematic LEO orbits through fixing the zero-differenced (ZD) ambiguities of ...
Xingxing Li, Jiaqi Wu, Keke Zhang
exaly +2 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingWith the fast development of low earth orbit (LEO) enhanced global navigation satellite system (LeGNSS), there is huge demand in LEO real-time precise orbit determination.
Haibo Ge, Guanlong Meng, Bofeng Li
doaj +3 more sources
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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Satellite Navigation, 2022 Over the past years the International Global Navigation Satellite System (GNSS) Monitoring and Assessment System (iGMAS) Wuhan Innovation Application Center (IAC) dedicated to exploring the potential of multi-GNSS signals and providing a set of products ...
Xingxing Li +6 more
doaj +1 more source
Precise orbit determination of Spire nano satellites [PDF]
, 2023 Spire Global, Inc. operates a growing fleet of currently more than 100 CubeSats in different low Earth orbits for commercial Earth observation. These satellites are equipped with dual-frequency GPS receivers and an attitude determination and control ...
Heike Peter +9 more
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Remote Sensing, 2022 Real-time precise orbit determination (POD) of low earth orbiters (LEOs) is crucial for orbit maintenance as well as autonomous operation for space missions.
Min Li +5 more
doaj +1 more source
International Journal of Aerospace Engineering, 2021 In order to enable the micro-nanosatellites equipped with microthrusters to better complete various space applications, it is necessary to estimate the thrust performance of the microthrusters in real-time on orbit. This paper proposes a real-time on-orbit estimation method for microthrust based on high-precision orbit determination.
Qinglin Yang, Weijing Zhou, Hao Chang
openaire +2 more sources
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
doaj +1 more source
ANALYSIS OF THE GRAVITY MODELS IMPACT ON LEO SATELLITE ORBIT PREDICTION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Non-spherical gravity plays a crucial role in the LEO satellite orbit determination and prediction. In recent years, several new gravity models have been proposed with more comprehensive ground and space-borne data.
Y. Zhuang, L. Wang
doaj +1 more source
TerraSAR-X precise orbit determination with real-time GPS ephemerides [PDF]
Advances in Space Research, 2012 Abstract For active and future Earth observation missions, the availability of near real-time precise orbit information is becoming more and more important. The latency and quality of precise orbit determination results is mainly driven by the availability of precise GPS ephemerides and clocks. In order to have high-quality GPS ephemerides and clocks
Wermuth, Martin +3 more
openaire +2 more sources