Results 31 to 40 of about 21,702 (292)

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

Temporal Hilbert transform based on an integrated frequency comb source [PDF]

open access: yes, 2016
An experimentally demonstrated temporal Hilbert transformer based on an integrated optical frequency comb source is exploited to obtain the temporal Hilbert transform of a Gaussian pulse with a full-width half maximum duration of 0.12ns.
Sai T. Chu   +15 more
core   +1 more source

An example of a Hilbert transform [PDF]

open access: yesProceedings of the American Mathematical Society, 1991
We construct a nonnegative integrable function on the real line R \mathbf {R}
openaire   +2 more sources

An Application to Transient Current Signal based Induction Motor Fault Diagnosis of Fourier-Bessel Expansion and Simplified Fuzzy ARTMAP [PDF]

open access: yes, 2013
The start-up transient signals have been widely used for fault diagnosis of induction motor because they can reveal early defects in the development process, which are not easily detected with the signals in the steady state operation. However, transient
Ball, Andrew   +4 more
core   +1 more source

The Hilbert transform of a measure

open access: yesJournal d'Analyse Mathématique, 2010
Let $\fre$ be a homogeneous subset of $\bbR$ in the sense of Carleson. Let $μ$ be a finite positive measure on $\bbR$ and $H_μ(x)$ its Hilbert transform. We prove that if $\lim_{t\to\infty} t \abs{\fre\cap\{x\mid\abs{H_μ(x)}>t\}}=0$, then $μ_s(\fre)=0$, where $μ_\s$ is the singular part of $μ$.
Poltoratski, Alexei   +2 more
openaire   +4 more sources

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

A causal model for linear RF systems developed from frequency-domain measured data [PDF]

open access: yes, 2005
With the ever-growing complexity of interconnect networks, models developed from measured data or data from 3-D electromagnetic simulators are increasingly becoming essential. It is to this end that the current contribution is directed. In particular, it
Condon, Marissa   +2 more
core   +1 more source

Generalized multidimensional Hilbert transforms in Clifford analysis

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Two specific generalizations of the multidimensional Hilbert transform in Clifford analysis are constructed. It is shown that though in each of these generalizations some traditional properties of the Hilbert transform are inevitably lost, new bounded ...
Fred Brackx   +2 more
doaj   +1 more source

A Comparative Study of Time-Frequency Representations for Fault Detection in Wind Turbine [PDF]

open access: yes, 2011
To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect and diagnose the generator faults ...
CHARPENTIER, Jean-Frederic   +10 more
core   +1 more source

Critical Assessment Of The Issues In The Application Of Hilbert Transform To Compute The Logarithmic Decrement

open access: yesArchives of Metallurgy and Materials, 2015
The parametric OMI (Optimization in Multiple Intervals), the Yoshida-Magalas (YM) and a novel Hilbert-twin (H-twin) methods are advocated for computing the logarithmic decrement in the field of internal friction and mechanical spectroscopy of solids.
Majewski M., Magalas L.B.
doaj   +1 more source

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