Results 61 to 70 of about 3,039,671 (230)
Barometric effect of neutron component of cosmic rays at Antarctic station «Mirny»
Solar-Terrestrial Physics, 2016 The barometric effect of cosmic ray neutron component was estimated on the example of the Antarctic station Mirny. We used hourly data from continuous monitoring of neutron component and data from a local weather station for 2007–2014.
Kobelev P.G. +5 more
doaj +1 more source
Signal Processing Methods to Improve Ocean Surface Wave Estimation from a High Frequency Surface Wave Radar [PDF]
, 2011 High frequency surface wave radars are operated as a remote sensor to measure ocean surface parameters to ranges exceeding 200-300 km from the coastline.
Wang, Wei
core +5 more sources
IOSR Journal of Electronics and Communication Engineering, 2014 This thesis deals with Radio Wave Propagation in environments where the propagation is severely influenced by surrounding objects, mainly walls and other building structures. As an introduction, a brief description is given on propagation terms like loss, delay and dispersion along with system functions relevant for the topic.
openaire +1 more source
Supercomputing-Enabled First-Principles Analysis of Radio Wave Propagation in Urban Environments
IEEE Transactions on Antennas and Propagation, 2018 Wireless communications are expected to take place in increasingly complicated scenarios, such as dense urban, forest, tunnel, and other cluttered environments. A key emerging challenge is to understand the physics and characteristics of wave propagation
B. MacKie-Mason +3 more
semanticscholar +1 more source
Miniaturized Circularly Polarized Microstrip RFID Antenna Using Fractal Metamaterial
International Journal of Antennas and Propagation, 2013 A novel miniaturized circularly polarized (CP) microstrip antenna that can handle UHF band (920–925 MHz, corresponding to the assigned band for RFID in China) has been designed, fabricated, and measured in this paper.
Guo Liu, Liang Xu, Zhensen Wu
doaj +1 more source
Rain attenuation prediction model for terrestrial links incorporating wet antenna effects
IET Microwaves, Antennas & Propagation, 2023 Accurate prediction of rain attenuation is critical for the design of terrestrial line‐of‐sight link systems above 5 GHz, particularly for millimetre‐wave frequency.
Xin Zhang +6 more
doaj +1 more source
Relation of daily periods of vlf radiation with X-ray sources
E3S Web of Conferences, 2016 Spectral analysis of electromagnetic noise radiation in the VLF range at three fixed frequencies for the period from 1997 to 2015 have been carried out. Periodograms with diurnal components associated with the periods of the Earth rotation relatively the
Drugin Gennady, Stasiy Ivan
doaj +1 more source
Earth and Planetary PhysicsDuring the course of ionospheric heating experiments, researchers at the European Incoherent Scatter Scientific Association (EISCAT) observed an apparent electron density enhancement.
Jun Wu +7 more
doaj +1 more source
Earth, Planets and Space, 2019 Spread-F is known as the electron density inhomogeneous structures in F layer of ionosphere and can usually be classified as frequency spread-F (FSF) and range spread-F (RSF).
Ning Wang +6 more
doaj +1 more source
Radio wave propagation over a rectangular obstacle
, 2003 Copyright © 2003 IEEE USNC/CNC/URSI North American Radio Science Meeting held in conjunction with IEEE Antennas & Propagation Society International Symposium.With the increased use of radio communications systems in cluttered urban environments, there is
Coleman, C.
core +1 more source