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Time-frequency analysis of tremors [PDF]
Brain, 1998 Time-frequency analysis methods were applied to surface EMG records of patients with tremor. Variation in tremor frequency over time and between muscles was measured in subjects with Parkinson's disease (n = 20), essential tremor (n = 8) and psychogenic tremor (n = 7).
P E, O'Suilleabhain, J Y, Matsumoto
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Time-Frequency Analysis of Systems with Changing Dynamic Properties [PDF]
, 2006 The Wigner-Ville Distribution, and related refinements, represent a class of advanced time-frequency analysis tools that are distinguished from Fourier and wavelet methods by an increase in resolution in the time frequency plane. Time-frequency analysis
Bradford, Samuel Case, V +1 more
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Railway wheel-flat and rail surface defect modelling and analysis by time–frequency techniques [PDF]
, 2013 Damage to the surface of railway wheels and rails commonly occurs in most railways. If not detected, it can result in rapid deterioration and possible failure of rolling stock and infrastructure components causing higher maintenance costs.
Liang, B. +7 more
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A Time–Frequency Analysis Perspective on Feynman Path Integrals
, 2020 The purpose of this expository paper is to highlight the starring role of techniques from time–frequency analysis in some recent contributions concerning the mathematical theory of Feynman path integrals.
S. Ivan Trapasso, Trapasso S. I.
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, 2021 Funding Information: Vesa Vuojamo is supported by the Vilho, Yrjö and Kalle Väisälä Foundation of the Finnish Academy of Science and Letters. Publisher Copyright: © 2021, The Author(s).A time–frequency transform is a sesquilinear mapping from a suitable ...
Vuojamo, Vesa +2 more
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A choice reaction time analysis of spatial frequency discrimination [PDF]
, 1989 Simple reaction time to the onset of sinewave gratings was measured as a function of spatial frequency in two observers. These results are compared to the choice reaction time required for the observer to correctly discriminate the spatial frequency of ...
Greenlee, Mark W., Breitmeyer, B. G.
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A new transform for time-frequency analysis
IEEE Transactions on Signal Processing, 1992 The psi-decomposition of a signal, in which the signal is written as a weighted sum of certain elementary synthesizing functions, is described. The set S of synthesizing functions consists of dilated and translated copies of two parent functions, which are concentrated in both the time and the frequency domains.
Kumar, Arun +3 more
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Time–Frequency analysis of localization operators
Journal of Functional Analysis, 2003 Let \(T_x f\) and \(M_\omega f\) denote the translation \(T_x f(t)=f(t-x)\) and the modulation \(M_\omega f (t)=e^{2\pi i\omega t} f(t)\) operators, respectively, and let \(V_g (x, \omega)=\int_{\mathbb{R}^d} f(t)\overline{g(t-x)}e^{-2\pi i\omega t}dt\) denote the short-time Fourier transform of \(f\in {\mathcal S}^\prime (\mathbb{R}^d) \) with respect
Cordero, Elena, Gröchenig, Karlheinz
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Data-driven time–frequency analysis
Applied and Computational Harmonic Analysis, 2013 In this paper, we introduce a new adaptive data analysis method to study trend and instantaneous frequency of nonlinear and non-stationary data. This method is inspired by the Empirical Mode Decomposition method (EMD) and the recently developed compressed (compressive) sensing theory.
Hou, Thomas Y., Shi, Zuoqiang
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Adaptive noise cancelling and time–frequency techniques for rail surface defect detection [PDF]
, 2015 Adaptive noise cancelling (ANC) is a technique which is very effective to remove additive noises from the contaminated signals. It has been widely used in the fields of telecommunication, radar and sonar signal processing.
Liang, B. +11 more
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