Results 21 to 30 of about 91,187 (349)
Map of Faraday rotation angle in Advanced Land Observing Satellite-2 full polarimetric data
The Journal of Engineering, 2019 Spaceborne synthetic aperture radar (SAR) systems operating at low frequency, such as L- and P-bands, are significantly influenced by ionospheric effects.
Yifei Ji +5 more
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Improving GNSS Positioning of Satellites using Artificial Neural Networks [PDF]
MATEC Web of Conferences, 2019 Small and nanosatellites have a very limited energy budget and their precise positioning capacity is limited in time as positioning sensors are, in general, power demanding.
Mihai Sergiu-Stefan +4 more
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IEEE Access, 2022 Earth observation satellites provide services for users by taking images. The rapid increase in the number of satellites and missions makes mission planning more difficult. In order to solve this problem, this paper adopts a multi-population evolutionary
Xuemei Jiang, Yanjie Song, Lining Xing
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Revue des Énergies RenouvelablesHybrid energy systems (HES) provide an effective solution to the growing global energy demand while addressing the limitations of conventional sources and environmental challenges.
Walid Bensalmi +2 more
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On the Possibility of Measuring the Gravitomagnetic Clock Effect in an Earth Space-Based Experiment [PDF]
, 2004 In this paper the effect of the post-Newtonian gravitomagnetic force on the mean longitudes $l$ of a pair of counter-rotating Earth artificial satellites following almost identical circular equatorial orbits is investigated.
Axelrad P Vassar R Parkinson B +37 more
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Performance evaluation of MPPT algorithms for PV system under real operating conditions
Revue des Énergies RenouvelablesThe efficiency of photovoltaic systems is greatly dependent on operating conditions such as solar irradiance and temperature variations. To maximize power extraction, Maximum Power Point Tracking (MPPT) techniques ensure operation at the most efficient ...
Walid Bensalmi +4 more
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Fault diagnosis for space utilisation
The Journal of Engineering, 2019 The space application task is to carry out various scientific experiments and applied research by using the ability of space experiment of spacecraft.
Yuanyuan Sun +4 more
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Quality of Orbit Predictions for Satellites Tracked by SLR Stations
Remote Sensing, 2021 This study aims to evaluate and analyze the orbit predictions of selected satellites: geodetic, Global Navigational Satellite Systems (GNSS), and scientific low-orbiting, which are tracked by laser stations.
Joanna Najder, Krzysztof Sośnica
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A LAZER STAR AS A REFERENCE RADIATION SOURCE IN FORMING NONDISTORTED AES IMAGES
Odessa Astronomical Publications, 2017 In the work, a possibility is shown of using an artificial laser source (a laser star) as a reference one to obtain an undistorted image of artificial Earth's satellites.
P. A. Bacoot +3 more
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Time Series Modeling of Lifespans of Earth Satellites [PDF]
Journal of Systemics, Cybernetics and Informatics, 2020 Numerous countries have satellites for various needs like communication, weather forecasting and security. The first satellite was launched into space in 1957.
Venkata Jaipal Reddy Batthula +5 more
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