Results 21 to 30 of about 21,592 (299)

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

On the Hilbert Transform of Wavelets [PDF]

open access: yesIEEE Transactions on Signal Processing, 2011
Appears in IEEE Transactions on Signal Processing, vol. 59, no. 4, pp.
Kunal Narayan Chaudhury, Michael Unser
openaire   +2 more sources

Free Hilbert transforms [PDF]

open access: yesDuke Mathematical Journal, 2017
Added two remarks (4.12, 4.13).
Mei, Tao, Ricard, Éric
openaire   +5 more sources

Edge feature enhancement approach using hilbert transform of Cauchy distribution and its applications

open access: yesIET Image Processing, 2021
Building on past work showing that the Hilbert transform can be used for edge feature enhancement, a new edge feature enhancement method is developed using a two‐dimensional (2D) isotropic Hilbert transform of the Cauchy distribution.
Ke Wang, Gustavo K. Rohde, Jian Xiao
doaj   +1 more source

A sufficient condition for the boundedness of operator-weighted martingale transforms and Hilbert transform [PDF]

open access: yes, 2007
Let W be an operator weight taking values almost everywhere in the bounded positive invertible linear operators on a separable Hilbert space H. We show that if W and its inverse W−1 both satisfy a matrix reverse Holder property introduced in [2], then ...
Pott, S.
core   +1 more source

Restricted Hilbert transform for feasible light management

open access: yes, 2021
A feasible restricted Hilbert Transform (HT) is presented to solve the challenging practical realization of non-Hermitian systems, restricting the complex susceptibility within practical limits.
Botey, Muriel   +4 more
core   +1 more source

LOW-COST DEVICE FOR FAULT DIAGNOSIS IN BEARINGS BASED ON THE HILBERT-HUANG TRANSFORM [PDF]

open access: yes, 2023
In order to monitor the condition of machinery complex industrial environments, high-cost equipment is required for signal acquisition and processing.
PABLO CIFUENTES FIALLOS   +5 more
core   +1 more source

Hilbert-Twin – A Novel Hilbert Transform-Based Method To Compute Envelope Of Free Decaying Oscillations Embedded In Noise, And The Logarithmic Decrement In High-Resolution Mechanical Spectroscopy HRMS

open access: yesArchives of Metallurgy and Materials, 2015
In this work, we present a novel Hilbert-twin method to compute an envelope and the logarithmic decrement, δ, from exponentially damped time-invariant harmonic strain signals embedded in noise.
Magalas L.B., Majewski M.
doaj   +1 more source

Time-Frequency Analysis of Noisy Vibration Signal Based on Improved Hilbert-Huang Transform

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Aimed at the phenomenon of modal confusion and lack of practical significance of instantaneous frequency caused by Hilbert-Huang transform (HHT) noisy vibration signal time-frequency analysis, complete ensemble empirical mode decomposition with adaptive ...
SUN Miao, YANG Junkai, WU Li
doaj   +1 more source

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