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A Rapid-Convergence Precise Point Positioning Approach Using Double Augmentations of Low Earth Orbit Satellite and Atmospheric Information
Published 2023-11-01“…Fortunately, the lower orbit altitude of Low Earth Orbit (LEO) satellites contributes to the fast variation of the satellites’ spatial geometry. …”
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183
First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in low Earth orbit
Published 2018“…The Langton Ultimate Cosmic ray Intensity Detector (LUCID) is a payload onboard the satellite TechDemoSat-1, used to study the radiation environment in Low Earth Orbit (635 km). LUCID operated from 2014 to 2017, collecting over 2.1 million frames of radiation data from its five Timepix detectors on board. …”
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Signal Occlusion-Resistant Satellite Selection for Global Navigation Applications Using Large-Scale LEO Constellations
Published 2023-10-01Subjects: Get full text
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Studies of Geomagnetic Pulsations Using Magnetometer Data from the CHAMP Low-Earth-Orbit Satellite and Ground-Based Stations: a Review
Published 2011-06-01“…We review research on geomagnetic pulsations carried out using magnetic field measurements from the CHAMP low-Earth-orbit (LEO) satellite and ground-based stations in South Africa and Hungary. …”
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Implications of Whole-Disc DSCOVR EPIC Spectral Observations for Estimating Earth’s Spectral Reflectivity Based on Low-Earth-Orbiting and Geostationary Observations
Published 2018-10-01“…Taking EPIC reflectivity as a reference, low-earth-orbiting-measurements at the sensor-specific LST tend to overestimate EPIC values by 0.8% to 8%. …”
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Performance Analysis of Inter-Satellite and Satellite-Ground Communication: A Report on Flight Data for a Low Earth Orbit CubeSat
Published 2023-11-01“…Communication between a nanosatellite located in Low Earth Orbit (LEO) and a ground station is limited in regions far from the poles, occurring for only a few minutes on different days and at different times. …”
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Impact of Test Conditions While Screening Lithium-Ion Batteries for Capacity Degradation in Low Earth Orbit CubeSat Space Applications
Published 2021-03-01“…A wide variety of commercial cylindrical lithium-ion batteries are available for use in nanosatellites (CubeSats) that cycle in low Earth orbit (LEO). This space application differs greatly from the conditions used to create the manufacturer datasheets that CubeSat teams rely on to screen cell types and estimate performance lifetimes. …”
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Thermal control of a small satellite in low earth orbit using phase change materials-based thermal energy storage panel
Published 2023-12-01Subjects: Get full text
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Narrowband Internet of Things via Low Earth Orbit Satellite Networks: An Efficient Coverage Enhancement Mechanism Based on Stochastic Geometry Approach
Published 2024-03-01“…With the development of IoT technology and 5G massive machine-type communication, the 3GPP standardization body considered as viable the integration of Narrowband Internet of Things (NB-IoT) in low Earth orbit (LEO) satellite-based architectures. However, the presence of the LEO satellite channel comes up with new challenges for the NB-IoT random access procedures and coverage enhancement mechanism. …”
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Enabling a permanent human presence beyond low Earth orbit: wearable radiation protection and enhanced science through virtual reality
Published 2024“…This thesis encompasses two key areas of research aimed at enhancing the safety and productivity of human exploration beyond low Earth orbit: the development of advanced radiation protection materials and the utilization of virtual reality (VR) for surface exploration. …”
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The estimation of power flux of microwave radiation from a negative narrow bipolar pulse a low earth orbit satellite altitude
Published 2016“…In this paper, we estimate power flux densities at two points in space within the orbiting range of low Earth orbit (LEO) satellite. One point located 200 km away from the narrow bipolar pulse (NBP) emission source with angle θ = 45° and the other point located 2000 km away from the NBP emission source with angle θ = 45°. …”
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OPTICAL OBSERVATIONS OF SMALL SPACECRAFT AND SPACE DEBRIS AT ISTP SB RAS SAYAN OBSERVATORY
Published 2019-12-01Subjects: Get full text
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Elevation Angle Characterization for LEO Satellites: First and Second Order Statistics
Published 2023-03-01Subjects: “…Low Earth orbit (LEO)…”
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A NavCom Signal Authentication Scheme Based on Twice Two-Way Satellite Time Transfer
Published 2023-12-01Subjects: “…low Earth orbit…”
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Toward the Next Generation of Microwave Sounders: Benefits of a Low-Earth Orbit Hyperspectral Microwave Instrument in All-Weather Conditions Using AI
Published 2024-01-01“…Through simulation experiments, the results of this study demonstrate the major benefits of HyMS sensor observations in low-Earth orbit (LEO), including; 1) increased information content over the microwave region, 2) improved temperature and moisture sounding in all-weather conditions, resulting from higher signal-to-noise ratios, finer vertical resolution, and a reduced dependence on background information due to the increased spectral resolution around oxygen and water vapor absorption features between 23 and 183 GHz, 3) improved profiling of hydrometeors, and 4) improved resilience to radio frequency interference, demonstrated at 23 GHz, associated with the redundant information provided by the HyMS. …”
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Real-Time Precise Orbit Determination of Low Earth Orbit Satellites Based on GPS and BDS-3 PPP B2b Service
Published 2024-02-01“…This study investigates and verifies the feasibility of the precise point positioning (PPP)-B2b enhanced real-time (RT) precise orbit determination (POD) of low Earth orbit (LEO) satellites. The principles and characteristics of matching various PPP-B2b corrections are introduced and analyzed. …”
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Article