Showing 61 - 80 results of 1,434 for search '"low Earth orbit"', query time: 0.21s Refine Results
  1. 61

    Space Radiation: The Number One Risk to Astronaut Health beyond Low Earth Orbit by Jeffery C. Chancellor, Graham B. I. Scott, Jeffrey P. Sutton

    Published 2014-09-01
    “…One or more of these deleterious health effects could develop during future multi-year space exploration missions beyond low Earth orbit (LEO). Shielding is an effective countermeasure against solar particle events (SPEs), but is ineffective in protecting crew members from the biological impacts of fast moving, highly-charged galactic cosmic radiation (GCR) nuclei. …”
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  2. 62

    Joint optimization based satellite handover strategy for low earth orbit satellite networks by Yifei Liu, Lang Feng, Liang Wu, Zaichen Zhang, Jian Dang, Bingcheng Zhu, Lei Wang

    Published 2021-07-01
    “…Abstract Low earth orbit constellation satellite communication has the characteristics of low propagation delay, low path loss, low launch cost and wide range of applications. …”
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    Orbital Reef and commercial low Earth orbit destinations—upcoming space research opportunities by Luis Zea, Liz Warren, Tara Ruttley, Todd Mosher, Laura Kelsey, Erika Wagner

    Published 2024-03-01
    “…ABSTRACT As the International Space Station comes to the end of a transformative era of in-space research, NASA’s Commercial Low Earth Orbit (LEO) Destinations (CLD) Program aims to catalyze a new generation of platforms with co-investment from the private sector, preventing a potential gap in research performed in LEO, while building a robust LEO economy. …”
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    3-D Low Earth Orbit Vector Estimation of Faraday Rotation and Path Delay by Nicholas P. Lawrence, Hedley J. Hansen, Derek Abbott

    Published 2015-01-01
    “…The work presented forms part of a large-field-of-view, low-Earth-orbit satellite model exploiting multiple-input multiple-output polarimetry in three dimensions.…”
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  11. 71

    Digital Twin Technology-Based Networking Solution in Low Earth Orbit Satellite Constellations by Ci He, Yasheng Zhang, Jia Ke, Mingwu Yao, Chen Chen

    Published 2024-03-01
    “…Furthermore, the paper introduces a digital twin algorithm based on network virtualization, cloud platform management, and software-defined networking to validate and analyze the twin requirements at different stages. Finally, a low Earth orbit (LEO) constellation twin validation environment is constructed to verify the networking protocols at various stages. …”
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  12. 72

    Performance Analysis of NB-IoT Uplink in Low Earth Orbit Non-Terrestrial Networks by Min-Gyu Kim, Han-Shin Jo

    Published 2022-09-01
    “…Compared to geostationary earth orbit, low earth orbit (LEO) satellite communication has the advantage of low propagation loss, but suffers from high Doppler shift. …”
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    A comprehensive design and performance analysis of low Earth orbit satellite quantum communication by J-P Bourgoin, E Meyer-Scott, B L Higgins, B Helou, C Erven, H Hübel, B Kumar, D Hudson, I D'Souza, R Girard, R Laflamme, T Jennewein

    Published 2013-01-01
    “…We analyse the performance of a low Earth orbit satellite for downlink and uplink scenarios of the quantum optical signals. …”
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    Precision Assessment of Near Real Time Precise Orbit Determination for Low Earth Orbiter by Jong-Yeoun Choi, Sang-Jeong Lee

    Published 2011-03-01
    “…The precise orbit determination (POD) of low earth orbiter (LEO) has complied with its required positioning accuracy by the double-differencing of observations between International GNSS Service (IGS) and LEO to eliminate the common clock error of the global positioning system (GPS) satellites and receiver. …”
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  17. 77

    A Comprehensive Method of Ambiguity Suppression for Constellation of Geostationary and Low Earth Orbit SAR by Peng Xiao, Wei Guo, Youming Wu, Bo Liu

    Published 2020-01-01
    “…In the system, with the MirrorSAR technology, one geostationary illuminator and several economical low earth orbit transponders work together to achieve a short revisiting interval. …”
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