Results 1 to 10 of about 17,761 (290)

An extended Hilbert transform method for reconstructing the phase from an oscillatory signal [PDF]

open access: yesScientific Reports, 2023
Rhythmic activity is ubiquitous in biological systems from the cellular to organism level. Reconstructing the instantaneous phase is the first step in analyzing the essential mechanism leading to a synchronization state from the observed signals.
Akari Matsuki   +2 more
doaj   +2 more sources

A New Fast Approximate Hilbert Transform with Different Applications

open access: goldInternational Islamic University Malaysia Engineering Journal, 2012
A new and fast approximate Hilbert transform based on subband decomposition is presented. This new algorithm is called the subband (SB)-Hilbert transform.
Abdulnasir Hossen
doaj   +3 more sources

An example of a Hilbert transform [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1991
We construct a nonnegative integrable function on the real line R \mathbf {R} whose Hilbert transform cannot be almost everywhere dominated by the HardyLittlewood maximal function of any finite measure on R \mathbf {R} .
K. Samotij
openalex   +2 more sources

A Frequency Estimation Scheme Based on Gaussian Average Filtering Decomposition and Hilbert Transform: With Estimation of Respiratory Rate as an Example [PDF]

open access: yesSensors, 2023
Frequency estimation plays a critical role in vital sign monitoring. Methods based on Fourier transform and eigen-analysis are commonly adopted techniques for frequency estimation.
Yue-Der Lin   +3 more
doaj   +2 more sources

ON THE SUMMABILITY OF THE DISCRETE HILBERT TRANSFORM [PDF]

open access: yesUral Mathematical Journal, 2018
In this paper, we study the asymptotic behavior of the distribution function of the discrete Hilbert transform of  sequences from the class \(l_{1} \) and find a necessary condition and a sufficient condition for the summability of the discrete Hilbert ...
Rashid A. Aliev, Aynur F. Amrahova
doaj   +3 more sources

Two-dimensional Hilbert transforms [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1957
R. J. Duffin
  +4 more sources

One result on boundedness of the Hilbert transform in Marcinkiewics spaces

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
In mathematics and in signal theory, the Hilbert transform is an important linear operator that takes a real-valued function and produces another real-valued function.
Nurken Tursynbayuly Bekbayev   +1 more
doaj   +1 more source

Quadratic-Phase Hilbert Transform and the Associated Bedrosian Theorem

open access: yesAxioms, 2023
The Hilbert transform is a commonly used linear operator that separates the real and imaginary parts of an analytic signal and is employed in various fields, such as filter design, signal processing, and communication theory.
Hari M. Srivastava   +4 more
doaj   +1 more source

Approximation of the Hilbert transform in the Lebesgue spaces

open access: yesJournal of Numerical Analysis and Approximation Theory, 2023
The Hilbert transform plays an important role in the theory and practice of signal processing operations in continuous system theory because of its relevance to such problems as envelope detection and demodulation, as well as its use in relating the ...
Rashid Aliev, Lale Alizade
doaj   +1 more source

Inequalities for a generalized finite Hilbert transform of convex functions [PDF]

open access: yesMathematica Moravica, 2021
In this paper we obtain some new inequalities for a generalized finite Hilbert transform of convex functions. Applications for particular instances of finite Hilbert transforms are given as well.
Dragomir Silvestru Sever
doaj   +1 more source

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