Title :
Maximum likelihood estimation of reverberation chamber direct-to-scattered ratio
Author :
Handel, Peter ; Prasad, Santasriya ; Beckman, Claes
Abstract :
The exact maximum likelihood estimator of the direct-to-scattered ratio of the Rician channel in a reverberation chamber is derived and its performance analysed. It is shown that the estimator obeys a non-central F-distribution, the mean value and variance of which are derived. For well stirred chambers, it is shown that the systematic error in the estimated ratio may be significant.
Keywords :
Rician channels; maximum likelihood estimation; reverberation chambers; Rician channel; direct-to-scattered ratio; maximum likelihood estimation; noncentral F-distribution; reverberation chamber;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.2489