Preconditioned Conjugate Gradient IAA Spectral Estimation

George-Othan Glentis, Andreas Jakobsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

In this paper, we develop superfast approximative algorithms for
the computationally efficient implementation of the recent Iterative
Adaptive Approach (IAA) spectral estimate. The proposed
methods are based on rewriting the IAA algorithm using suitable
Gohberg-Semencul representations, solving the resulting linear
systems of equations using the preconditioned conjugate gradient
method, where a novel preconditioning is applied using an incomplete
factorization of the Toeplitz matrix. Numerical simulations
illustrate the efficiency of the proposed algorithm.
Original languageEnglish
Title of host publicationEuropean Signal Processing Conference
PublisherEuropean Association for Signal Processing (EURASIP)
Pages1195-1199
Number of pages5
Volume2001
Publication statusPublished - 2011
Event19th European Signal Processing Conference, EUSIPCO 2011 - Barcelona, Barcelona, Spain
Duration: 2011 Aug 292011 Sept 2
Conference number: 19

Publication series

Name
Volume2001
ISSN (Print)2219-5491

Conference

Conference19th European Signal Processing Conference, EUSIPCO 2011
Country/TerritorySpain
CityBarcelona
Period2011/08/292011/09/02

Subject classification (UKÄ)

  • Probability Theory and Statistics

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