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Conference Paper
Bivariate Statistical Analysis for Electromagnetic Reverberation Chamber
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- Authors
- Suna Choi, Seungkeun Park
- Issue Date
- 2013-08
- Citation
- Progress in Electromagnetics Research Symposium (PIERS) 2013 in Stockholm, pp.188-191
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- The probability density functions (PDFs) of electromagnetic fields inside real reverberation chambers has been categorized into eight cases and the mathematical expressions for all the cases were recently reported. In this paper, we compile the complete expressions for the magnitude and phase PDFs of bivariate normal distribution. Furthermore, we present the assessment of these PDFs using a RC located at Ajou University, South Korea. To investigate how close to the ideal case is the measured data, T-tests and F test are used to test the hypotheses for zero means, equal variances and zero correlation between the real and imaginary part of the field. The results show that the circumstance of the RC is far from the ideal case. Then, KS and AD GoF tests are applied to the magnitude and phase PDFs for investigating the agreement between the measurement data and PDFs of the eight cases. According to the GoF tests, the magnitude PDFs of the type 3 and type 7 are very highly rejected. Also, the rejection rate of magnitude PDFs of the type 4 is lower than those of most other types, and the type 8 shows the lowest rejection rate. On the other hand, the phase PDFs of even types are much less rejected than those of odd types, and the phase PDFs of the type 8 shows the lowest rejection rate. The results of the paper are helpful in better understanding the behavior of fields in RCs.
- KSP Keywords
- AD GoF tests, Bivariate normal distribution, Electromagnetic Field(EMF), Magnitude and phase, Probability Density Function, Rejection rate, Reverberation chamber, South Korea, Statistical Analysis, Type 4, imaginary part