Results 11 to 20 of about 167,061 (255)

Hölder norm estimate for a Hilbert transform in Hermitian Clifford analysis [PDF]

open access: yes, 2012
A Hilbert transform for Holder continuous circulant (2 x 2) matrix functions, on the d-summable (or fractal) boundary I" of a Jordan domain Omega in a"e(2n) , has recently been introduced within the framework of Hermitean Clifford analysis. The main goal
Abreu Blaya, Ricardo   +4 more
core   +2 more sources

A New Fast Approximate Hilbert Transform with Different Applications

open access: yesInternational 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   +1 more source

A Hilbert transform for hermitean matrix functions on fractal domains [PDF]

open access: yes, 2012
We consider Holder continuous circulant (2 × 2) matrix functions defined on the fractal boundary of a Jordan domain in R2n. The main goal is to establish a Hilbert transform for such functions, within the framework of Hermitean Clifford analysis. This is
Abreu Blaya, Ricardo   +4 more
core   +2 more sources

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

Pulse Signal Analysis Method Based on Improved HHT [PDF]

open access: yesJisuanji gongcheng, 2019
The traditional Hilbert-Huang Transform(HHT) has low accuracy in Empirical Mode Decomposition(EMD) when processing pulse signals,and there are mode mixing problems.In response to this problem,this paper proposes an improved HHT method.Combined with Time ...
KUANG Xue, LI Zhi, WANG Yongjun, ZHANG Shaorong
doaj   +1 more source

Vector valued inequalities for families of bilinear Hilbert transforms and applications to bi-parameter problems [PDF]

open access: yes, 2012
Muscalu, Pipher, Tao and Thiele \cite{MPTT} showed that the tensor product between two one dimensional paraproducts (also known as bi-parameter paraproduct) satisfies all the expected $L^p$ bounds.
Bateman   +11 more
core   +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

Criterion on Lp1×Lp2→Lq-Boundedness for Oscillatory Bilinear Hilbert Transform

open access: yesAbstract and Applied Analysis, 2014
We investigate the bilinear Hilbert transform with oscillatory factors and the truncated bilinear Hilbert transform.
Zuoshunhua Shi, Dunyan Yan
doaj   +1 more source

Applying the Hilbert--Huang Decomposition to Horizontal Light Propagation C_n^2 data [PDF]

open access: yes, 2006
The Hilbert Huang Transform is a new technique for the analysis of non--stationary signals. It comprises two distinct parts: Empirical Mode Decomposition (EMD) and the Hilbert Transform of each of the modes found from the first step to produce a Hilbert ...
Chang, Mark P. J. L.   +4 more
core   +3 more sources

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