Results 11 to 20 of about 191,872 (232)

The first Spanish Short Wave Stations: Development of radio & TV technology [PDF]

open access: yes2010 Second Region 8 IEEE Conference on the History of Communications, 2010
In the thirties in Spain there were three big Short Wave Stations. One, belonging to Transradio Española in Aranjuez, 50 kilometers south of Madrid, which rendered radiotelegraphic services to the Canary Islands, Europe and America. Another, belonging to the Sociedad Anónima Radio Argentina (via Radiar), in Vallecas, on the outskirts of Madrid, also ...
Romeo Lopez, Jose M.
openaire   +5 more sources

Analysis on the Influence of the Height of Tower on Passive Interference in shortwave

open access: yesE3S Web of Conferences, 2018
The passive interference of transmission lines to nearby radio stations may affect the effective reception and transmission of radio station signals. Therefore, the accurate calculation of the electromagnetic scattering of transmission lines under the ...
Lu Ying   +3 more
doaj   +1 more source

Design of an integrated shallow water wave experiment [PDF]

open access: yes, 1997
The experimental design and instrumentation for an integrated shallow-water surface gravity wave experiment is discussed. The experiment required the measurement of the water surface elevation, meteorological parameters, and directional spectra at a ...
Dalton, M. A.   +3 more
core   +1 more source

Analysis on the Influence of Transmission Lines span on Passive Interference in Shortwave

open access: yesE3S Web of Conferences, 2018
The passive interference of transmission lines to nearby radio stations may affect the effective reception and transmission of radio station signals. Therefore, the accurate calculation of the electromagnetic scattering of transmission lines under the ...
Lu Ying   +3 more
doaj   +1 more source

Impact of Overlapped AoAs on the Achievable Uplink Rate of Hybrid Beamforming for Massive MIMO mm-Wave Systems for Industrial Environments

open access: yesIEEE Access, 2019
In this paper, we develop novel precoder and combiner schemes for multi-user hybrid digital-to-analog (D-A) beamforming for uplink massive multiple-input multiple-output millimeter wave (mm-Wave) systems, where the number of radio frequency chains is ...
Osama Alluhaibi   +3 more
doaj   +1 more source

Cryogenic probe station for on-wafer characterization of electrical devices [PDF]

open access: yes, 2012
A probe station, suitable for the electrical characterization of integrated circuits at cryogenic temperatures is presented. The unique design incorporates all moving components inside the cryostat at room temperature, greatly simplifying the design and ...
Cleary, Kieran   +2 more
core   +1 more source

Influence of heating experiments on parameters of Schumann resonances

open access: yesE3S Web of Conferences, 2017
Recently the significant increase in intensity of researches in the field of the fissile impact on geophysical processes in various environments is noted.
Agranat Irina, Sivokon Vladimir
doaj   +1 more source

Insights and approaches for low-complexity 5G small-cell base-station design for indoor dense networks [PDF]

open access: yes, 2015
This paper investigates low-complexity approaches to small-cell base-station (SBS) design, suitable for future 5G millimeter-wave (mmWave) indoor deployments.
Arshad, Kamran   +2 more
core   +1 more source

MIRAI Architecture for Heterogeneous Network [PDF]

open access: yes, 2002
One of the keywords that describe next-generation wireless communications is "seamless." As part of the e-Japan Plan promoted by the Japanese Government, the Multimedia Integrated Network by Radio Access Innovation project has as its goal the development
Havinga, Paul J.M.   +2 more
core   +3 more sources

On the Bending of Electromagnetic Micro-Waves below the Horizon [PDF]

open access: yes, 1935
An interesting phase in the development of the modern radio technique are the experiments conducted during the last few years with very short wave-lengths.
Epstein, Paul S.
core  

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