Reverberation Chamber Measurement Correlation

This contribution evaluates the utility of several different metrics for studying correlation between reverberation chamber measurements collected at different stirrer positions. Metrics considered are the autocovariance, the correlation matrix, and two metrics based upon the entropy of the data cor...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2012-06, Vol.54 (3), p.533-545
Main Authors: Pirkl, R. J., Remley, K. A., Patane, C. S. L.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Coherence
Correlation
Electromagnetic compatibility
entropy
Exact sciences and technology
Frequency measurement
Frequency modulation
Information, signal and communications theory
measurement correlation
measurement efficiency
Reverberation chamber
Telecommunications and information theory
Uncertainty
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Summary:This contribution evaluates the utility of several different metrics for studying correlation between reverberation chamber measurements collected at different stirrer positions. Metrics considered are the autocovariance, the correlation matrix, and two metrics based upon the entropy of the data correlation matrix: 1) the effective number of uncorrelated measurements and 2) the measurement efficiency. The different metrics are shown to be useful for different correlation analyses. Application of these metrics reveals that the correlation between reverberation chamber measurements is strongly affected by stirring methodology, loading configuration, and measurement frequency.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2011.2166964