Asymptotic estimates of the norms of positive definite Toeplitz matrices and detection of quasi-periodic components of stationary random signals

Asymptotic forms of the Hilbert-Scmidt and Hilbert norms of positive definite Toeplitz matrices \(Q_{N}=(b(j-k))_{j,k=0}^{N-1}\) as \(N\to \infty \) are determined. Here \(b(j)\) are consequent trigonometric moments of a generating non-negative mesure \(d\sigma (\theta)\) on \([ -\pi ,\pi ] \). It i...

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Published in:arXiv.org 2005-06
Main Authors: Adamyan, Vadim M, Iserte, Jose L, Tkachenko, Igor M
Format: Article
Language:English
Subjects:
Asymptotic properties
Boiling water reactors
Mathematical analysis
Matrix methods
Norms
Nuclear reactors
Operators (mathematics)
Random signals
Signal processing
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Iserte, Jose L
Tkachenko, Igor M
description Asymptotic forms of the Hilbert-Scmidt and Hilbert norms of positive definite Toeplitz matrices \(Q_{N}=(b(j-k))_{j,k=0}^{N-1}\) as \(N\to \infty \) are determined. Here \(b(j)\) are consequent trigonometric moments of a generating non-negative mesure \(d\sigma (\theta)\) on \([ -\pi ,\pi ] \). It is proven that \(\sigma (\theta)\) is continuous if and only if any of those contributions is \(o(N)\). Analogous criteria are given for positive integral operators with difference kernels. Obtained results are applied to processing of stationary random signals, in particular, neutron signals emitted by boiling water nuclear reactors.
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subjects Asymptotic properties
Boiling water reactors
Mathematical analysis
Matrix methods
Norms
Nuclear reactors
Operators (mathematics)
Random signals
Signal processing
title Asymptotic estimates of the norms of positive definite Toeplitz matrices and detection of quasi-periodic components of stationary random signals
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