Estimating and Time-Updating the 2-D Coherence Function

Andreas Jakobsson; Stephen Alty; Jacob Benesty

doi:10.1109/TSP.2007.892715

Estimating and Time-Updating the 2-D Coherence Function

Andreas Jakobsson, Stephen Alty, Jacob Benesty

Department of Electronic Engineering

Research output: Contribution to journal › Letter › peer-review

Abstract

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 language	English
Pages (from-to)	2350-2354
Number of pages	5
Journal	IEEE Transactions on Acoustics Speech and Signal Processing
Volume	55
Issue number	5
DOIs	https://doi.org/10.1109/TSP.2007.892715
Publication status	Published - May 2007

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10.1109/TSP.2007.892715

Cite this

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title = "Estimating and Time-Updating the 2-D Coherence Function",

abstract = "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",

author = "Andreas Jakobsson and Stephen Alty and Jacob Benesty",

year = "2007",

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T1 - Estimating and Time-Updating the 2-D Coherence Function

AU - Jakobsson, Andreas

AU - Alty, Stephen

AU - Benesty, Jacob

PY - 2007/5

Y1 - 2007/5

N2 - 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

AB - 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

U2 - 10.1109/TSP.2007.892715

DO - 10.1109/TSP.2007.892715

M3 - Letter

VL - 55

SP - 2350

EP - 2354

JO - IEEE Transactions on Acoustics Speech and Signal Processing

JF - IEEE Transactions on Acoustics Speech and Signal Processing

IS - 5

ER -