Results 31 to 40 of about 1,535 (264)

Emission Test Method for Source Stirred Reverberation Chambers With Scalar Measurements

open access: yesIEEE Access, 2023
This paper describes a novel method to reconstruct the radiated emission of a device under test placed in a reverberation chamber equipped with multiple monopole source stirring technique. The method is based on the measurement of the normal component of
Alfredo De Leo   +2 more
doaj   +1 more source

Angle-Dependent Absorption of Sound on Porous Materials

open access: yesAcoustics, 2020
Sound-absorbing materials are usually measured in a reverberation chamber (diffuse field condition) or in an impedance tube (normal sound incidence). In this paper, we show how angle-dependent absorption coefficients could be measured in a factory-type ...
Jose Cucharero   +2 more
doaj   +1 more source

Experimental Studies of the Sound Scattering Coefficient of the Diffuser in the Reverberation Chamber

open access: yesEnvironmental and Climate Technologies, 2023
Wood charcoal is a sustainable, renewable, and environmentally friendly material with the use that the acoustic device can produce. Charcoal made of wood waste materials allows for improving indoor acoustical quality.
Khrystoslavenko Olga   +1 more
doaj   +1 more source

PERFORMANCE OF THE REFLECTIVITY MEASUREMENT IN A REVERBERATION CHAMBER [PDF]

open access: yesProgress In Electromagnetics Research, 2015
n ...
GIFUNI, Angelo   +2 more
openaire   +2 more sources

A Multifunctional Solution for Simultaneous Sound Insulation and Acoustic Conditioning—An Example of Application in a Radio Studio

open access: yesBuildings, 2022
In building acoustics, two different problems usually arise. There is a need to comply with established sound insulation parameters, but there are also legislative conditions concerning reverberation time.
Juan C. Rodríguez   +2 more
doaj   +1 more source

ANALYSIS OF ACOUSTIC FIELD DIFFUSIVITY FOR THE DETERMINATION OF THE SOUND ABSORPTION COEFFICIENT IN A REVERBERATION CHAMBER

open access: yesAnales (Asociación Física Argentina)
The Laboratory of Acoustics and Vibrations of INTI is fine-tuning a system for determining the sound absorption coefficient in a reverberation chamber using the interrupted noise method following the guidelines of IRAM 4065:2019. The study focuses on two
F. Fernandez Criscuolo   +3 more
doaj   +1 more source

Auditory environmental context affects visual distance perception

open access: yesScientific Reports, 2017
In this article, we show that visual distance perception (VDP) is influenced by the auditory environmental context through reverberation-related cues.
Pablo E. Etchemendy   +6 more
doaj   +1 more source

Analysis of Plane Waves Spectra in a Weakly-Disturbed Flat Reverberation Chamber by Information Theory Criteria [PDF]

open access: yesRadioengineering, 2018
This work aims to present the impact of disturbing the stationary modes in a rectangular-shaped reverberation chamber by small-dimensioned stirrers. The study focuses on plane wave’s modeling of the electric field inside a flat cavity using information ...
K. Nafkha, H. Ragad, A. Gharsallah
doaj  

Correlation and Capacity Calculations with Reference Antennas in an Isotropic Environment

open access: yesInternational Journal of Antennas and Propagation, 2012
A reverberation chamber is a convenient tool for over-the-air testing of MIMO devices in isotropic environments. Isotropy is typically achieved in the chamber through the use of a mode stirrer and a turntable on which the device under test (DUT) rides ...
Thorkild B. Hansen
doaj   +1 more source

Measurement and Analysis of Channel Characteristics in Reflective Environments at 3.6 GHz and 14.6 GHz

open access: yesApplied Sciences, 2017
Recently, high frequency bands (above 6 GHz) have attracted more attention for the next generation communication systems due to the limited frequency resources below 6 GHz.
Xin Zhou   +7 more
doaj   +1 more source

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