NDLI: Verification of the Rician K-factor-based uncertainty model for measurements in reverberation chambers

Content Provider	IET Digital Library
Author	Chen, Xiaoming Kildal, Per Simon Carlsson, Jan
Abstract	Measurements in reverberation chamber (RC) produce data that are random, and therefore they need to be processed from the statistical point-of-view for obtaining the desired characteristics and the accuracy. The complex channel transfer function in the RC follows complex Gaussian distribution provided that the RC is well stirred. The authors have recently presented a new uncertainty model based on the presence of an unstirred component of the transfer function, which was modelled by introducing an average Rician K-factor. The model was validated in two RCs with translating mode-stirring plates, being able to correctly describe the improvement in accuracy by rotating the antenna under test, and by blocking the line-of-sight between this and the fixed RC antenna(s). In the present study, they apply this uncertainty model to four RCs with different settings (e.g. RC volumes, number of plates or fixed RC antennas, translating and rotating mode-stirrers etc.). For each RC, they examine the measurement uncertainty under different loading conditions. To repeat (during the different measurements) the actual mode-stirrer positions at which the transfer function is sampled, they conduct all the measurements with stepwise (instead of continuous) mode-stirring. The model is shown to work well for all the cases.
Starting Page	534
Ending Page	539
Page Count	6
ISSN	17518822
Volume Number	9
e-ISSN	17518830
Issue Number	Issue 5, Aug (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/9/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2014.0344
Journal	IET Science, Measurement & Technology
Publisher Date	2015-04-10
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Antenna Testing Antenna under Test Complex Channel Transfer Function Complex Gaussian Distribution Electromagnetic Compatibility Fixed RC Antenna Gaussian Distribution Interference Measurement Uncertainty Measurement Uncertainty Model Radio Link And Equipment Reverberation Chamber Rician Channel Rician K-factor Single Antenna Statistical Point-of-view Statistics Stepwise Mode Stirring Transfer Function Unstirred Component
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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