Results 21 to 30 of about 3,406,012 (295)
Investigation of Parameters Affecting Underwater Communication Channel [PDF]
Журнал інженерних наук, 2020 Underwater communication has become a widely studied area in recent years and showed great potential to be an area of research. Acoustic communication is often preferred in underwater communication due to its suitability for an underwater diffusion ...
Aydin S., Onur T. O.
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Acoustic Characteristics of Small Research Vessels
Journal of Marine Science and Engineering, 2020 Vessel noise is an acute and chronic stressor of a wide variety of marine fauna. Understanding, modelling and mitigating the impacts of this pollutant requires quantification of acoustic signatures for various vessel classes for input into propagation ...
Miles Parsons, Mark Meekan
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Arctic Anthropogenic Sound Contributions from Seismic Surveys during Summer 2013
Frontiers in Marine Science, 2017 Statoil deployed three acoustic recorders from fall 2013 to 2014 in the Arctic region as part of a broad scientific campaign. One recorder was installed in the Barentsz Sea south-east of Spitsbergen.
Mike van der Schaar +4 more
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IEEE Access, 2022 This paper proposes a robust non-linear generalized path-loss propagation model, the Extended Weighted ABG (EWABG), which efficiently allows generating a path-loss propagation model by combining several available path-loss datasets (from measurements ...
David Casillas-Perez +4 more
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Propagation measurements to support third generation mobile radio network planning [PDF]
, 1993 The features of the radio network planning tool proposed by the European RACE Advanced Cell Planning Methods and Tools for Third Generation Mobile Radio Systems (PLATON) project are described.
J.C.S. Cheung +5 more
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Dianxin kexue, 2022 To solve the problem of small coverage area and discontinuous coverage of large fixed-wing aerospace emergency base stations, a design scheme for continuous coverage of UAV emergency base stations was proposed.Based on the analysis of the coverage ...
Shengwei CHEN +4 more
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Propagation of Gaussian Beams in the Presence of Gain and Loss [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2016 We consider the propagation of Gaussian beams in a waveguide with gain and loss in the paraxial approximation governed by the Schrödinger equation. We derive equations of motion for the beam in the semiclassical limit that are valid when the waveguide profile is locally well approximated by quadratic functions.
Eva-Maria Graefe +2 more
openaire +3 more sources
Performance Analysis of Propagation in VHF Military Tactical Communication System
مجلة بغداد للعلوم, 2021 The main challenge of military tactical communication systems is the accessibility of relevant information on the particular operating environment required for the determination of the waveform's ideal use.
Azita Laily Yusof +3 more
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Viability Bounds of M2M Communication Using Energy-Harvesting and Passive Wake-Up Radio
IEEE Access, 2017 Techniques for wireless energy harvesting (WEH) are being emerged as a fascinating set of solutions to extend the lifetime of energy-constrained wireless networks.
Jukka Rinne +4 more
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Observability of Path Loss Parameters in WLAN-Based Simultaneous Localization and Mapping [PDF]
, 2013 Indoor positioning by means of received signal strengths has been gathering much interest since the massive presence of wireless local area networks (WLANs) in buildings.
Patrick Robertson +3 more
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