Spectral density estimation for random fields via periodic embeddings. [PDF]
Biometrika, 2019 We introduce methods for estimating the spectral density of a random field on a [Formula: see text]-dimensional lattice from incomplete gridded data. Data are iteratively imputed onto an expanded lattice according to a model with a periodic covariance ...
Guinness J.
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Noise power spectral density estimation based on optimal smoothing and minimum statistics [PDF]
IEEE Transactions on Speech and Audio Processing, 2001 We describe a method to estimate the power spectral density of nonstationary noise when a noisy speech signal is given. The method can be combined with any speech enhancement algorithm which requires a noise power spectral density estimate.
Rainer Martin
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Spectral density constraints on wireless communication [PDF]
Heliyon, 2020 Environmental exposure to man-made electromagnetic field (EMF) has been rising as modern technologies have grown and changes in social behavior have generated more synthetic sources. For safety of human health, EMF levels need to be regulated.
Mohammad Kaisb Layous Alhasnawi +3 more
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GROUND BASED SUPPORT OF THE SPACE MISSION PARKER PERFORMED WITH UKRAINIAN LOW FREQUENCY RADIO TELESCOPES [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. The sporadic radio emissions coming from the Sun in a broad frequency range contain a lot of important information concerning the solar corona, parameters of the radio frequency sources therein, and the parameter variations resulting
V. V. Dorovsky +2 more
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Power spectral density and coherence analysis of Alzheimer's EEG. [PDF]
Cogn Neurodyn, 2015 Wang R +5 more
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Spectral-density estimation with the Gaussian integral transform [PDF]
Physical Review A, 2020 The spectral density operator $\hat{\rho}(\omega)=\delta(\omega-\hat{H})$ plays a central role in linear response theory as its expectation value, the dynamical response function, can be used to compute scattering cross-sections.
A. Roggero
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Rolling stock vibrodynamic impact model on railway pipelines [PDF]
E3S Web of Conferences, 2023 The present paper presents the rolling stock vibrodynamic impact model on railway pipelines, obtained on the basis of experimental studies conducted under field conditions at a railway station.
Postnova E.V., Runev E.V.
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On one condition of absolutely continuous spectrum for self-adjoint operators and its applications [PDF]
Opuscula Mathematica, 2018 In this work the method of analyzing of the absolutely continuous spectrum for self-adjoint operators is considered. For the analysis it is used an approximation of a self-adjoint operator \(A\) by a sequence of operators \(A_n\) with absolutely ...
Eduard Ianovich
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Semi-empirical Haken–Strobl model for molecular spin qubits
New Journal of Physics, 2023 Understanding the physical processes that determine the relaxation T _1 and dephasing T _2 times of molecular spin qubits is critical for envisioned applications in quantum metrology and information processing.
Katy Aruachan +3 more
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Bayesian nonparametric spectral density estimation using B-spline priors [PDF]
Statistics and computing, 2017 We present a new Bayesian nonparametric approach to estimating the spectral density of a stationary time series. A nonparametric prior based on a mixture of B-spline distributions is specified and can be regarded as a generalization of the Bernstein ...
M. Edwards, R. Meyer, N. Christensen
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