Reverberation Chamber Measurement Correlation

Author

Pirkl, Ryan J. ; Remley, Kate A. ; Patané, Christian S Lötbäck

Author_Institution

RF Fields Group, Nat. Inst. of Stand. & Technol., Boulder, CO, USA

Volume

54

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

533

Lastpage

545

Abstract

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.

Keywords

correlation methods; covariance matrices; measurement systems; reverberation chambers; autocovariance, Metrics; correlation analysis; correlation matrix; data correlation matrix; loading configuration; measurement efficiency; measurement frequency; reverberation chamber measurement correlation; stirrer positions; stirring methodology; uncorrelated measurements; Bandwidth; Coherence; Correlation; Frequency measurement; Frequency modulation; Reverberation chamber; Uncertainty; Correlation; entropy; measurement correlation; measurement efficiency; reverberation chamber;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/TEMC.2011.2166964

Filename

6035772