Results 21 to 30 of about 3,039,671 (230)
Overview of processing and analysis methods for pulse geophysical signals [PDF]
E3S Web of Conferences, 2020 The paper discusses the processing and analysis methods for the geoacoustic and electromagnetic emission pulse signals recorded for more than 20 years at the IKIR FEB RAS geodynamic proving ground (Kamchatka Peninsula).
Lukovenkova Olga +3 more
doaj +1 more source
, 2010 Fourth generation (4G) wireless communication systems are intended to support high data rates, which require careful and accurate modelling of the radio environment. In this book, finite element based accurate and computationally efficient models of wave
Arshad, Kamran
core +5 more sources
Results of atmospheric-lithospheric observations of acoustic radiation in Kamchatka [PDF]
E3S Web of Conferences, 2019 Simultaneous atomspheric-lithospheric acoustic observations have been carried out during autumn-spring periods of 2017-2019 in Kamchatka at “Karymshina” observation site located in the zone of different-rank tectonic faults.
Larionov Igor +2 more
doaj +1 more source
Sionna RT: Differentiable Ray Tracing for Radio Propagation Modeling [PDF]
2023 IEEE Globecom Workshops (GC Wkshps), 2023 Sionna™ is a GPU-accelerated open-source library for link-level simulations based on TensorFlow. Since release v0.14 it integrates a differentiable ray tracer (RT) for the simulation of radio wave propagation.
J. Hoydis +6 more
semanticscholar +1 more source
Radio-Wave Propagation and Electromagnetic Surface Waves [PDF]
Proceedings of the National Academy of Sciences, 1947 A Discrepancy and Its Resolution. - The problem of the propagation of radio-waves along the surface of the (plane) earth was first treated in a celebrated paper by A. Sommerfeld (1909).(1) Let the (r, φ)-plane of a cylindric system of coordinates coincide with the plane of the earth surface and let the z-axis point vertically upward.
openaire +3 more sources
Operative center of the geophysical prognosis in Izmiran [PDF]
Annales Geophysicae, 2005 IZMIRAN was founded about 65 years ago with one of the goals of carrying out geomagnetic prognoses. More or less, this activity has been developed during its entire history, but about 6 years ago this aim became sufficiently feasible due to the ...
A. V. Belov +5 more
doaj +1 more source
Scaled Modeling and Measurement for Studying Radio Wave Propagation in Tunnels
Electronics, 2020 The subject of radio wave propagation in tunnels has gathered attention in recent years, mainly regarding the fading phenomena caused by internal reflections. Several methods have been suggested to describe the propagation inside a tunnel.
Jacob Gerasimov +7 more
semanticscholar +1 more source
Millimeter Wave and Sub-THz Indoor Radio Propagation Channel Measurements, Models, and Comparisons in an Office Environment [PDF]
IEEE Communications Letters, 2021 This letter provides a comparison of indoor radio propagation measurements and corresponding channel statistics at 28, 73, and 140 GHz, based on extensive measurements from 2014–2020 in an indoor office environment.
Yunchou Xing +2 more
semanticscholar +1 more source
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
core +1 more source
Radio wave propagation in open space areas of a vegetation.
, 2023 Radio wave propagation in open space areas of a vegetation.
Zhangchao Ma (11741986) +5 more
core +1 more source