Results 11 to 20 of about 6,074 (263)
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
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L1 SFMC SBAS Message for Service Expansion of Multi-Constellation GNSS Support
IEEE Access, 2023 Currently operating satellite-based augmentation systems (SBASs) provide an augmentation service that improves global positioning system (GPS) performance at 250 bps via the L1 signal.
Cheolsoon Lim +2 more
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SBAS APPROACH AND ITS COMPARISON WITH OTHER TYPES OF APPROACH
Perner’s Contacts, 2016 This paper discusses SBAS approach based on GNSS with aim to compare it with other systems. The first part addresses the basics of SBAS and approaches conducted using SBAS.
Jakub Kraus +3 more
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Evaluating the performance of ChatGPT-4 on the United Kingdom Medical Licensing Assessment
Frontiers in Medicine, 2023 IntroductionRecent developments in artificial intelligence large language models (LLMs), such as ChatGPT, have allowed for the understanding and generation of human-like text.
U Hin Lai +7 more
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METHODOLOGY TO IMPROVE THE ACCURACY OF DETERMINING THE POSITION OF UAVS EQUIPPED WITH SINGLE-FREQUENCY RECEIVERS FOR THE PURPOSES OF GATHERING DATA ON AVIATION OBSTACLES [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2023 Low-altitude photogrammetric studies are often applied in detection of aviation obstacles. The low altitude of the Unmanned Aerial Vehicle (UAV) flight guarantees high spatial resolution (X, Y) of the obtained data. At the same time, due to high temporal
Marta LALAK +2 more
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جغرافیا و پایداری محیط, 2020 Land subsidence, as one of the natural and geological hazards, can be caused by human activities such as long-term discharge of groundwater and traditional irrigation farming. In the last two decades, climate change and successive droughts, unsustainable
Ramin Papi +2 more
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Chemical quenching of positronium in OMC/SBA-15, OMC@SBA-15 and CuO@SBA-15 catalysts [PDF]
Acta Physica Sinica, 2022 Owing to highly ordered two-dimensional hexagonal structure, large surface area, variable pore size, high thermal stability and especially the electron delocalization energy determined by its frame structure, SBA-15 catalysts have received more and more researchers’ attention.
Chong-Yang Li, Bin Zhao, Jun-Wei Zhang
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Sustainable Energy Solutions for Environmental Pollution Control [PDF]
E3S Web of ConferencesWith increased technological advancements, in today’s world, sustainable energy solutions are innovative and provide attractive encouragement to researchers, green chemists, scientists, leaders, and the student community.
Mohan Chandra +4 more
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Applied Sciences, 2020 The ionosphere is one of the main factors affecting the accuracy of global navigation satellite systems (GNSS). It is a dispersive medium for radio signals, and for multi-frequency receivers, most of its effect can be removed.
Adam Ciećko, Grzegorz Grunwald
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