Results 1 to 10 of about 10,223 (143)
Analysis of the Impact of Atmospheric Models on the Orbit Prediction of Space Debris [PDF]
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
doaj +2 more sources
Improving High-Precision BDS-3 Satellite Orbit Prediction Using a Self-Attention-Enhanced Deep Learning Model [PDF]
SensorsPrecise Global Navigation Satellite System (GNSS) orbit prediction is critical for real-time positioning applications. Current orbit prediction accuracy for the BeiDou Navigation Satellite System-3 (BDS-3) exhibits a notable disparity compared to GPS and
Shengda Xie, Jianwen Li, Jiawei Cai
doaj +2 more sources
GPS Satellite Orbit Prediction at User End for Real-Time PPP System [PDF]
Sensors, 2017 This paper proposed the high-precision satellite orbit prediction process at the user end for the real-time precise point positioning (PPP) system. Firstly, the structure of a new real-time PPP system will be briefly introduced in the paper.
Hongzhou Yang, Yang Gao
doaj +2 more sources
Analysis of Space Debris Orbit Prediction Using Angle and Laser Ranging Data from Two Tracking Sites under Limited Observation Environment [PDF]
Sensors, 2020 The global electro-optical (EO) and laser tracking sensor network was considered to investigate improvements to orbit prediction (OP) accuracy of space debris by combining angle and laser ranging data.
Simon Kim +9 more
doaj +2 more sources
Orbit Prediction Methods for ONEWEB Constellation
AerospaceThis study aims to enhance Low Earth Orbit (LEO) satellite orbit prediction accuracy. We propose the Precise Orbit Determination with Optimized Perturbations (PODOP) method, considering Earth’s non-spherical gravity, atmospheric drag, etc., and a Long ...
Junyu Chen +3 more
doaj +2 more sources
Efficient Multi-Threaded Data Starting Point Matching Method for Space Target Cataloging [PDF]
SensorsCurrently, multi-target survey telescope arrays play an important role in the build-up and maintenance of space object catalog databases, collecting massive observational data without attributing information.
Jiannan Sun +3 more
doaj +2 more sources
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
Remote Sensing, 2023 Accurately modeling the density of atmospheric mass is critical for orbit determination and prediction of space objects. Existing atmospheric mass density models (ADMs) have an accuracy of about 15%.
Junyu Chen +3 more
doaj +1 more source
Open Astronomy, 2022 High-accuracy orbit prediction plays a crucial role in several aerospace applications, such as satellite navigation, orbital maneuver, space situational awareness, etc. The conventional methods of orbit prediction are usually based on dynamic models with
Zhai Min +4 more
doaj +1 more source
Orbit Determination for All-Electric GEO Satellites Based on Space-Borne GNSS Measurements
Remote Sensing, 2022 Orbit accuracy of the transfer orbit and the mission orbit is the basis for the orbit control of all-electric-propulsion Geostationary Orbit (GEO) satellites.
Wenqiang Lu +3 more
doaj +1 more source