Exploració per tema "Time-frequency analysis"
Ara es mostren els items 13-17 de 17
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Positive time-frequency distributions based on joint marginal constraints
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1996-08-01)
Article
Accés obertThis correspondence studies the formulation of members of the Cohen-Posch class of positive time-frequency energy distributions. Minimization of cross-entropy measures with respect to different priors and the case of ... -
Relationship between sleep stages and HRV response in obstructive sleep apnea patients
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertPatients suffering from obstructive sleep apnea (OSA) usually present an increased sympathetic activity caused by the intermittent hypoxia effect on autonomic control. This study evaluated the relationship between sleep ... -
Reliability oriented OTFS-based LEO satellites joint transmission scheme
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertThis paper investigates a dual satellite transmission scheme with coherent reception. The receiver has a single synchronization circuit and is locked to only one of the satellites. Beam-centric pre-compensation techniques ... -
Sex differences in autonomic response to exercise testing in patients with Brugada syndrome
(Springer, 2018-07-12)
Capítol de llibre
Accés restringit per política de l'editorialVentricular arrhythmias in Brugada syndrome (BS) typically occur at rest and especially during sleep, suggesting that changes in the autonomic modulation may play an important role in arrhythmogenesis. The autonomic response ... -
Wigner higher-order spectra: definition, properties, computation and application to transient signal analysis
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1993-01-31)
Article
Accés obertThe Wigner higher order moment spectra (WHOS) are defined as extensions of the Wigner-Ville distribution (WD) to higher order moment spectra domains. A general class of time-frequency higher order moment spectra is also ...