| Title | Efficient Implementation of the IAA-based Magnitude Squared Coherence Estimator |
| Authors | Kostas Aggelopoulos, George-Othan Glentis, Andreas Jakobsson |
| Alternative Location | http://dx.doi.org/10.1109/I..., Restricted Access |
| Publication | Digital Signal Processing (DSP), 2011 17th International Conference on |
| Year | 2011 |
| Pages | 6 |
| Document type | Conference paper |
| Conference name | 17th International Conference on Digital Signal Processing |
| Conference Date | 2011-07-06/2011-07-08 |
| Conference Location | Corfu |
| Status | Published |
| Quality controlled | Yes |
| Language | eng |
| Publisher | IEEE |
| Abstract English | Recently, a novel Magnitude Squared Coherence (MSC) estimator was proposed using the Iterative Adaptive Approach (IAA) algorithm. In this paper, we present a computationally efficient implementation of this estimator, exploiting the inherently low displacement rank of the necessary products of Toeplitz-like matrices, thereby allowing for the development of appropriate Gohberg-Semencul (GS) representations of these matrices. Together with relevant data dependent trigonometric polynomials, the presented implementation offers a substantial computational reduction as compared to earlier implementations. Numerical simulations along with theoretical complexity estimations illustrate the performance of the proposed algorithm. |
| Keywords | Capon estimator, Coherence spectrum, efficient algorithms, iterative adaptive approach, |
| ISBN/ISSN/Other | ISBN: 978-1-4577-0273-0 (print) |
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