Filtered evelope spectrum using short periodograms for bearing fault identification under variable speed

Sierra-Alonso, Edgar F.; Antoni, Jérôme; Castellanos-Domínguez, Germán

doi:10.1007/978-3-030-20131-9_414

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2019

2023

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“…PSD can be defined as the magnitude squared of the Fourier transform of the measured signal's autocorrelation function. Both the mean and variance enable to characterize the PSD estimator (Bartlett, 1950;Rooney & Buck, 2019;Sierra-Alonso et al, 2019;Welch, 1967).…”

Section: Introductionmentioning

confidence: 99%

Initial Study on Implementation of the Low-Frequency Wave Markers for the Purpose of Diagnostic Tests’ Performance and Neurofeedback Therapy

Zolubak

Pelc

Ožana

et al. 2019

Studies in Logic, Grammar and Rhetoric

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The paper focuses on automation of signal processing, which also considers analysis of biomedical data, such as EEG. The results of the study prove that this enables a better understanding of signal changes and makes it possible to address some specific disturbances. It also makes it possible to describe the relevant changes in signals mathematically and helps to create markers of various brain disorders. This paper presents the study at the initial stage and focuses on the mathematical markers of concentration disorders associated with Theta waves. The presented markers presented are based on Welch’s periodograms. The obtained results are very promising and further studies aimed at refining them are currently being carried out.

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Section: Introductionmentioning

confidence: 99%