Remote Sensing, 2023 At present, solar remote sensing instruments face problems regarding the short detection time for solar activity and the need to preheat the electronics before detection.
Yingqiu Shao +7 more
doaj +1 more source
Detection and Tracking of Weak Exoatmospheric Target with Elliptical Hough Transform
Remote Sensing, 2022 An elliptical Hough transform (EHT) algorithm is proposed in the framework of track-before-detect (TBD) for joint detection and tracking of weak exoatmospheric targets.
Bin Rao, Yongkun Zhou, Yuanping Nie
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Ballistic Coefficient Calculation Based on Optical Angle Measurements of Space Debris
Sensors, 2023 Atmospheric drag is an important factor affecting orbit determination and prediction of low-orbit space debris. To obtain accurate ballistic coefficients of space debris, we propose a calculation method based on measured optical angles.
Yigao Ding +6 more
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Impacts of Arc Length and ECOM Solar Radiation Pressure Models on BDS-3 Orbit Prediction
Remote Sensing, 2022 The BeiDou global navigation satellite system (BDS-3) has already provided worldwide navigation and positioning services for which the high-precision BDS-3-predicting orbit is the foundation.
Ran Li +7 more
doaj +1 more source
Effect of lunar gravity models on Chang'E-2 orbit determination using VLBI tracking data
Geodesy and Geodynamics, 2016 The precise orbit determination of Chang'E-2 is the most important issue for successful mission and scientific applications, while the lunar gravity field model with big uncertainties has large effect on Chang'E-2 orbit determination.
Erhu Wei +3 more
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Evaluation of strategies for the ultra-rapid orbit prediction of BDS GEO satellites
Geo-spatial Information Science, 2023 The quality of BeiDou Navigation Satellite System (BDS) Geostationary Earth Orbit (GEO) ultra-rapid products is unsatisfactory because GEO satellites are nearly stationary relative to ground stations.
Wenxi Zhao +4 more
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Impact of Thermospheric Mass Density on the Orbit Prediction of LEO Satellites
Space Weather, 2020 Many thermospheric mass density (TMD) variations have been recognized in observations and physical simulations; however, their impact on the low‐Earth‐orbit satellites has not been fully evaluated.
Changyong He +8 more
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Orbit Predictions for Space Object Tracked by Ground-Based Optical and SLR Stations
Remote Sensing, 2022 In many cases, we have few optical observations over a short time span, and most of the information generated is too limited to compute a full orbit according to the angles-only method.
A. M. Abdelaziz +4 more
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An optimal design of the broadcast ephemeris for LEO navigation augmentation systems
Geo-spatial Information Science, 2022 As the deployment of large Low Earth Orbiters (LEO) communication constellations, navigation from the LEO satellites becomes an emerging opportunity to enhance the existing satellite navigation systems.
Xueli Guo +5 more
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Analysis of Orbit Accuracy for Non-cooperative Earth-Orbiting Objects
Open Astronomy, 2019 The atmospheric resistance and solar radiation pressure are the main sources of non-gravitational perturbations in orbit determination and prediction of non-cooperative earth-orbiting objects.
Jianrong Chen, Junfeng Li
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