Estimating and Time-Updating the 2-D Coherence Spectrum
Jakobsson, Andreas LU
; Alty, Stephen
and Benesty, Jacob
(2007)
In IEEE Transactions on Signal Processing
55(5, part 2).
p.2350-2354
- 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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1216168
- author
- Jakobsson, Andreas
LU
; Alty, Stephen
and Benesty, Jacob
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- coherence spectrum, computational complexity, iterative methods, spectrum analysis, time varying systems, CAPON, APES
- in
- IEEE Transactions on Signal Processing
- volume
- 55
- issue
- 5, part 2
- pages
- 2350 - 2354
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:34247846084
- ISSN
- 1053-587X
- DOI
- 10.1109/TSP.2007.892715
- language
- English
- LU publication?
- no
- id
- 1ed01d88-6ffd-4e28-aacb-da07caa65bc7 (old id 1216168)
- alternative location
- http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=4156396
- date added to LUP
- 2016-04-01 15:50:10
- date last changed
- 2022-01-28 07:27:46
@article{1ed01d88-6ffd-4e28-aacb-da07caa65bc7,
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 = {{Jakobsson, Andreas and Alty, Stephen and Benesty, Jacob}},
issn = {{1053-587X}},
keywords = {{coherence spectrum; computational complexity; iterative methods; spectrum analysis; time varying systems; CAPON; APES}},
language = {{eng}},
number = {{5, part 2}},
pages = {{2350--2354}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Signal Processing}},
title = {{Estimating and Time-Updating the 2-D Coherence Spectrum}},
url = {{http://dx.doi.org/10.1109/TSP.2007.892715}},
doi = {{10.1109/TSP.2007.892715}},
volume = {{55}},
year = {{2007}},
}