EVALUATION AND MEASUREMENT OF THE DOPPLER SPECTRUM IN A REVERBERATION CHAMBER | Zendy

Xiaoming Chen | Zendy

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EVALUATION AND MEASUREMENT OF THE DOPPLER SPECTRUM IN A REVERBERATION CHAMBER

Author(s) -

Xiaoming Chen

Publication year - 2012

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm12091808

Subject(s) - doppler effect , electromagnetic reverberation chamber , spectrum (functional analysis) , reverberation , acoustics , frequency spectrum , physics , computer science , spectral density , telecommunications , quantum mechanics , astronomy

In this paper, the measurement of the Doppler spectrum in a reverberation chamber (RC) is investigated. The estimation performance of the Doppler spectrum in the previous work is reformulated and analyzed. It is found that the previous RC Doppler spectrum evaluation is an inconsistent estimation. An improved method for evaluating the Doppler spectrum is presented, which makes use of the frequency stirring technique to enhance the estimation performance. In addition, the RC loading efiect on the Doppler spectrum is investigated in this paper as well. Measurements are performed in a RC, based on which the Doppler spectrum is evaluated. It is shown that the improved method results in a smaller estimation variance and that the Doppler spread decreases with increasing RC loading.

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