Estimating and Time-Updating the 2-D Coherence Function. / Jakobsson, Andreas; Alty, Stephen; Benesty, Jacob.

In: IEEE Transactions on Acoustics Speech and Signal Processing, Vol. 55, No. 5, 05.2007, p. 2350-2354.

Research output: Contribution to journalLetterpeer-review



In this correspondence, we extend the recently introduced one-dimensional Capon-based Magnitude Square Coherence (MSC) spectral estimator, to form two-dimensional Capon- and Amplitude and Phase EStimation (APES)-based MSC spectral estimators. The resulting estimators are found to yield significantly improved estimates as compared to the typical Welch-based estimator. Furthermore, we introduce a computationally efficient time-updating of the presented MSC estimators, exploiting their inherent time-varying displacement structure. The presented updating is found to dramatically lower the computational requirement of reevaluating the MSC spectral estimates
Original languageEnglish
Pages (from-to)2350-2354
Number of pages5
JournalIEEE Transactions on Acoustics Speech and Signal Processing
Issue number5
Publication statusPublished - May 2007
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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