Showing 181 - 200 results of 1,434 for search '"low Earth orbit"', query time: 0.21s Refine Results
  1. 181
  2. 182

    A Rapid-Convergence Precise Point Positioning Approach Using Double Augmentations of Low Earth Orbit Satellite and Atmospheric Information by Bei He, Changsheng Cai, Lin Pan

    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. …”
    Get full text
    Article
  3. 183

    First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in low Earth orbit by Furnell, W, Shenoy, A, Fox, E, Hatfield, P

    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. …”
    Journal article
  4. 184
  5. 185
  6. 186

    Studies of Geomagnetic Pulsations Using Magnetometer Data from the CHAMP Low-Earth-Orbit Satellite and Ground-Based Stations: a Review by P R Sutcliffe, D C Ndiitwani, H Lühr, B Heilig

    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. …”
    Get full text
    Article
  7. 187
  8. 188

    Performance Analysis of Inter-Satellite and Satellite-Ground Communication: A Report on Flight Data for a Low Earth Orbit CubeSat by Miguel Limón-González, Enrique Rafael García-Sánchez, Héctor Simón Vargas-Martínez, Nicolás Quiroz-Hernández, Selene Edith Maya-Rueda

    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. …”
    Get full text
    Article
  9. 189

    Impact of Test Conditions While Screening Lithium-Ion Batteries for Capacity Degradation in Low Earth Orbit CubeSat Space Applications by Riley Cook, Lukas Swan, Kevin Plucknett

    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. …”
    Get full text
    Article
  10. 190
  11. 191
  12. 192

    Narrowband Internet of Things via Low Earth Orbit Satellite Networks: An Efficient Coverage Enhancement Mechanism Based on Stochastic Geometry Approach by Tao Hong, Xiao Yu, Ziwei Liu, Xiaojin Ding, Gengxin Zhang

    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. …”
    Get full text
    Article
  13. 193

    Enabling a permanent human presence beyond low Earth orbit: wearable radiation protection and enhanced science through virtual reality by Paige, Cody Alison

    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. …”
    Get full text
    Thesis
  14. 194
  15. 195

    The estimation of power flux of microwave radiation from a negative narrow bipolar pulse a low earth orbit satellite altitude by Ahmad, M. R., Esa, M. R. M.

    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°. …”
    Article
  16. 196
  17. 197
  18. 198
  19. 199

    Toward the Next Generation of Microwave Sounders: Benefits of a Low-Earth Orbit Hyperspectral Microwave Instrument in All-Weather Conditions Using AI by Eric S. Maddy, Flavio Iturbide-Sanchez, Sid Ahmed Boukabara

    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. …”
    Get full text
    Article
  20. 200

    Real-Time Precise Orbit Determination of Low Earth Orbit Satellites Based on GPS and BDS-3 PPP B2b Service by Yali Shi, Tianhe Xu, Min Li, Kai Wei, Shuai Wang, Dixing Wang

    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. …”
    Get full text
    Article