Results 11 to 20 of about 3,215 (291)

Practical Correlation-Matrix Approaches for Standardized Testing of Wireless Devices in Reverberation Chambers

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
We extend the autocorrelation-based approaches currently used in standards to full correlation-matrix-based approaches in order to identify correlation between both spatially adjacent and non-adjacent samples in reverberation-chamber measurements.
Kate A. Remley   +9 more
doaj   +1 more source

Research on the Sensitivity of Airborne Radio Station in Electromagnetic Reverberation Chamber High-intensity Radiation Fields

open access: yesHangkong gongcheng jinzhan, 2020
As the typical airborne equipment, it is of great significance to study the radiation effects of airborne radio station in high intensity radiation fields (HIRF).
YUAN Hongtao   +3 more
doaj   +1 more source

Reverberating chamber profile identification

open access: yesIET Microwaves, Antennas & Propagation, 2012
This study proposes a model, based on the generalised K (GK) distribution, for identifying the reverberating chamber (RC) propagation channel profiles. Following this rationale, a parameter, given by a proper combination of GK parameters, is not only able to clearly distinguish between line-of-sight (LOS) and non-line-of-sight conditions, but it is ...
SORRENTINO, Antonio   +3 more
openaire   +2 more sources

Characterization of Reverberation Chamber - A Comprehensive Review

open access: yesIEEE Access, 2020
This study presents a comprehensive review of the characterization techniques of a reverberation chamber (RC). After describing the limitations of the theoretical models for the determination of the lowest usable frequency (LUF) of a chamber, the ...
Jawad Yousaf   +5 more
doaj   +1 more source

FDTD modelling of reverberation chamber

open access: yesElectronics Letters, 2005
The finite-difference time-domain (FDTD) method is applied to the simulation of a reverberation chamber. The real losses of the reverberation chamber are taken into account in a post-treatment process. The predicted results are compared with measured data and good agreement is reported.
Bonnet, Pierre   +3 more
openaire   +3 more sources

The Effect of Zigzag Boundaries on the Reverberation Chamber Performance

open access: yesIEEE Access, 2021
The stirrer design is important in a reverberation chamber measurement system. Previous study shows that the rotating radius of the stirrer plays a key role for the stirrer performance. However, to identify the contribution from the structure, optimizing
Kai Chen, Qian Xu, Xueqi Shen, Chun Ren
doaj   +1 more source

Diffuseness Quantification in a Reverberation Chamber and Its Variation with Fine-Resolution Measurements

open access: yesBuildings, 2021
Insufficient diffuseness is the major cause of the poor repeatability and reproducibility of building acoustical measurements in a reverberation chamber. Inaccurate results were reported for the prevailing methods in ISO and ASTM standards. Many previous
Shuying Zhang, Joonhee Lee
doaj   +1 more source

A Fast Finite-Difference Time Domain Simulation Method for the Source-Stirring Reverberation Chamber

open access: yesInternational Journal of Antennas and Propagation, 2017
Numerical analysis methods are often employed to improve the efficiency of the design and application of the source-stirring reverberation chamber. However, the state of equilibrium of the field inside the chamber is hard to reach.
Wenxing Li, Chongyi Yue, Atef Elsherbeni
doaj   +1 more source

Frequency characterization of reverberation chambers [PDF]

open access: yesProceedings of Symposium on Electromagnetic Compatibility, 2002
A series of measurements to investigate the modal structure of a reverberation chamber were conducted at the Dahlgren Division of the Naval Surface Warfare Center, Dahlgren, Virginia. These measurements were Phase I of a project to determine the frequency dependent characteristics of the fields in a reverberation chamber.
M.O. Hatfield, M.B. Slocum
openaire   +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

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