Results 21 to 30 of about 47,269 (283)
Doklady BGUIR, 2020 The article proposes two types of multibeam spherotron-diotron based on a two-spherical resonator (an early article suggested a spherotron-diotron with non-synchronous interaction on a bi-spherical resonator, where the electron beam in this generator passes along the resonator z axis from the outer sphere to the inner one and interacts with the ...
A. A. Kurayev, V. V. Matveyenka
openaire +3 more sources
Deep Learning-Based Joint Channel Prediction and Multibeam Precoding for LEO Satellite Internet of Things [PDF]
IEEE Transactions on Wireless CommunicationsLow earth orbit (LEO) satellite internet of things (IoT) is a promising way achieving global Internet of Everything, and thus has been widely recognized as an important component of sixth-generation (6G) wireless networks. Yet, due to high-speed movement
Ming Ying +3 more
semanticscholar +1 more source
A Storage-Saving Quadtree-Based Multibeam Bathymetry Map Representation Method
Journal of Marine Science and Engineering, 2023 With the rapid advancement of the simultaneous localization and mapping (SLAM) technology, the collaboration of several autonomous underwater vehicles (AUVs) in large-scale seafloor imaging has become a trending topic. Electromagnetic waves are difficult
Zheng Cong +9 more
doaj +1 more source
A 3D-Printed Subterahertz Metallic Surface-Wave Luneburg Lens Multibeam Antenna
IEEE Transactions on Terahertz Science and Technology, 2023 This letter presents an experimental realization of a subterahertz metallic gradient index (GRIN) lens multibeam antenna operating at 355 GHz. The antenna is composed of a surface-wave Luneburg lens based on a bed of nails and a feeder array of nine WR-2.
Boyu Nie +4 more
semanticscholar +1 more source
How Do Continuous High-Resolution Models of Patchy Seabed Habitats Enhance Classification Schemes?
Geosciences, 2019 Predefined classification schemes and fixed geographic scales are often used to simplify and cost-effectively map the spatial complexity of nature.
Gustav Kågesten +3 more
doaj +1 more source
msemalign: a pipeline for serial section multibeam scanning electron microscopy volume alignment
Frontiers in Neuroscience, 2023 Serial section multibeam scanning electron microscopy (ssmSEM) is currently among the fastest technologies available for acquiring 3D anatomical data spanning relatively large neural tissue volumes, on the order of 1 mm3 or larger, at a resolution ...
Paul V. Watkins +2 more
doaj +1 more source
The first ultra-high resolution Digital Terrain Model of the shallow-water sector around Lipari Island (Aeolian Islands, Italy) [PDF]
, 2015 Very high resolution bathymetric map obtained through multibeam echosounders data are crucial to generate accurate Digital Terrain Models from which the morphological setting of active volcanic areas can be analyzed in detail. Here we show and discuss
Anzidei, M +5 more
core +2 more sources
Multibeam by Metasurface Antennas
IEEE Transactions on Antennas and Propagation, 2017 We explore various possibilities for designing multibeam antennas using a single metasurface (MTS) aperture. Both single-source and multisource feeding schemes are considered. For the single-source case, two approaches are investigated. In the first one, the MTS aperture is divided into several angular sectors, each one devoted to the formation of a ...
David Gonzalez-Ovejero +3 more
openaire +3 more sources
Stable Emissions from a Four-Rod Nd:YAG Solar Laser with ±0.5° Tracking Error Compensation Capacity
Photonics, 2023 Conventional solar-pumped lasers rely on expensive and highly accurate solar tracking systems, which present a significant economic barrier to both solar laser research and practical applications.
Miguel Catela +7 more
doaj +1 more source
MIMO Applications for Multibeam Satellites [PDF]
IEEE Transactions on Broadcasting, 2019 Accepted for publication in IEEE Transactions on ...
Robert T. Schwarz +3 more
openaire +2 more sources