Results 21 to 30 of about 591,139 (353)
LEO Satellite Constellation for Global-Scale Remote Sensing With On-Orbit Cloud AI Computing
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 This article proposes a new satellite-based framework for global-scale remote sensing that is integrated with on-orbit cloud computing and artificial intelligence (AI) services.
Yuejin Li +4 more
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GPS-SBAS-Based Orbit Determination for Low Earth Orbiting Satellites
International Journal of Aerospace Engineering, 2023 A space-based augmentation system (SBAS) provides real-time GNSS correction signals via geostationary satellites for near-ground GNSS users. To use the SBAS correction for low Earth orbit (LEO) satellites, the correction, especially the ionosphere ...
Mingyu Kim, Jeongrae Kim
doaj +1 more source
Simplified Optimization Model for Low-Thrust Perturbed Rendezvous Between Low-Eccentricity Orbits [PDF]
, 2022 Trajectory optimization of low-thrust perturbed orbit rendezvous is a crucial technology for space missions in low Earth orbits, which is difficult to solve due to its initial value sensitivity, especially when the transfer trajectory has many revolutions. This paper investigated the time-fixed perturbed orbit rendezvous between low-eccentricity orbits
arxiv +1 more source
Pseudo-Stochastic Orbit Modeling Techniques for Low-Earth Orbiters [PDF]
Journal of Geodesy, 2006 The Earth’s non-spherical mass distribution and atmospheric drag cause the strongest perturbations on very low-Earth orbiting satellites (LEOs). Models of gravitational and non-gravitational accelerations are utilized in dynamic precise orbit determination (POD) with GPS data, but it is also possible to derive LEO positions based on GPS precise point ...
Jäggi, A., Hugentobler, U., Beutler, G.
openaire +4 more sources
Analysis on the coverage performance and networking scheme of an MEO constellation
Dianxin kexue, 2022 Geostationary earth orbit (GEO) satellite orbit position resources have been scarce for a long time.The development of giant low-orbit satellite constellations has made the low-orbit resources unprecedentedly scarce.As a compromise between GEO and low ...
Yanbin ZHAO, Renning WANG, Peipei HU
doaj +2 more sources
Multi-Step Control of Chaos in the Application of Earth-Moon Orbit Transfer [PDF]
Xibei Gongye Daxue Xuebao, 2018 A multi-step control of chaos method is proposed in this paper to reduce the flight time in the chaotic region of Earth-Moon low-energy orbit transfer.
doaj +1 more source
Design of optimal Earth pole-sitter transfers using low thrust propulsion [PDF]
, 2011 Recent studies have shown the feasibility of an Earth pole-sitter mission using low-thrust propulsion. This mission concept involves a spacecraft following the Earth's polar axis to have a continuous, hemispherical view of one of the Earth's poles.
Battin +25 more
core +3 more sources
Microbiome, 2020 Background The extraordinarily resistant bacterium Deinococcus radiodurans withstands harsh environmental conditions present in outer space. Deinococcus radiodurans was exposed for 1 year outside the International Space Station within Tanpopo orbital ...
Emanuel Ott +9 more
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ABPBI/MWCNT for proton radiation shielding in low earth orbit
APL Materials, 2023 When planning for any space mission, shielding against ionizing radiation is essential. Polymers, combined with a nano-filler material to reinforce and enhance the polymer properties, can provide a sufficient radiation shielding function with lower ...
Lionel Fabian Fourie +3 more
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Review of the Development of Low Earth Orbit Satellite Communication for Smart High-Speed Railway
天地一体化信息网络, 2023 Low-earth orbit satellites have the advantages of wide bandwidth, low latency, and large coverage, making them very suitable as a supplement to ground cellular networks.Low-earth orbit satellites can meet the requirements of smart high-speed railway full
Zhaoyang SU +5 more
doaj +2 more sources