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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Borneo Lute ‘Sape’: The Frequency Spectrum and Time Frequency Analysis (TFA)
BioResources, 2023 Sound elements were studied for a six strings sape, a traditional instrument. The frequency was evaluated using a frequency spectrum and a time frequency plane. PicoScope oscilloscopes and Adobe Audition version 3 were used to record the acoustic spectra.
Sinin Hamdan +4 more
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Seismic Time-Frequency Analysis Based on Time-Reassigned Synchrosqueezing Transform
IEEE Access, 2021 In this paper, we propose a novel seismic time-frequency analysis method via the time-reassigned synchrosqueezing transform (TSST), in which the time-frequency coefficients are reassigned in the time direction rather than in the frequency direction as ...
Pingping Bing, Wei Liu, Yang Liu
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Frequency-Domain Analysis of Linear Time-Periodic Systems [PDF]
, 2004 In this paper, we study convergence of truncated representations of the frequency-response operator of a linear time-periodic system. The frequency-response operator is frequently called the harmonic transfer function. We introduce the concepts of input,
Bernhardsson, Bo +2 more
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ANALYSIS OF TEMPORAL AND FREQUENCY CHARACTERISTICS OF SIMULTANEOUS GEODEFORMATION SIGNALS REGISTERED AT “KARYMSHINA” SITE [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2019 Simultaneous geodeformational observations have been carried out from 2016 to the present time at “Karymshina” site on Kamchatka. A laser deformograph-interferometer and a three-component seismoacoustic receiver were installed to conduct these ...
M. A. Mishchenko +2 more
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Bayesian Lattice Filters for Time-Varying Autoregression and Time-Frequency Analysis [PDF]
, 2014 Modeling nonstationary processes is of paramount importance to many scientific disciplines including environmental science, ecology, and finance, among others.
Holan, Scott H. +2 more
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Robust sparse time‐frequency analysis for data missing scenarios
IET Signal Processing, 2023 Sparse time‐frequency analysis (STFA) can precisely achieve the spectrum of the local truncated signal. However, when the signal is disturbed by unexpected data loss, STFA cannot distinguish effective signals from missing data interferences.
Yingpin Chen, Yuming Huang, Jianhua Song
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Time-frequency analysis on the adeles over the rationals [PDF]
, 2018 We show that the construction of Gabor frames in $L^{2}(\mathbb{R})$ with generators in $\mathbf{S}_{0}(\mathbb{R})$ and with respect to time-frequency shifts from a rectangular lattice $\alpha\mathbb{Z}\times\beta\mathbb{Z}$ is equivalent to the ...
Enstad, Ulrik B. R. +2 more
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Joint time-frequency analysis on space-time-coding digital metasurfaces
JPhys Photonics, 2022 Space-time and time-varying metastructures have attracted a lot of research interest in recent years. On the other hand, digital programmable metasurfaces have also gained great attention owing to their powerful capabilities in controlling ...
Xiao Qing Chen +5 more
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Global testing against sparse alternatives in time-frequency analysis [PDF]
, 2016 In this paper, an over-sampled periodogram higher criticism (OPHC) test is proposed for the global detection of sparse periodic effects in a complex-valued time series.
Cai, T. Tony +2 more
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