Results 31 to 40 of about 746,026 (201)

Nonlinear prediction via Hermite transformation [PDF]

open access: yesStatistical Theory and Related Fields, 2020
General prediction formulas involving Hermite polynomials are developed for time series expressed as a transformation of a Gaussian process. The prediction gains over linear predictors are examined numerically, demonstrating the improvement of nonlinear prediction.
Tucker McElroy, Srinjoy Das
openaire   +2 more sources

Fourier transform of hn(x + p)hn(x − p)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
We evaluate Fourier transform of a function with Hermite polynomials involved. An elementary proof is based on a combinatorial formula for Hermite polynomials.
Mourad E. H. Ismail, Krzystztof Stempak
doaj   +1 more source

A Robust and Secure Watermarking Approach Based on Hermite Transform and SVD-DCT

open access: yesApplied Sciences, 2023
Currently, algorithms to embed watermarks into digital images are increasing exponentially, for example in image copyright protection. However, when a watermarking algorithm is applied, the preservation of the image’s quality is of utmost importance, for
Sandra L. Gomez-Coronel   +3 more
doaj   +1 more source

Complex Hermite functions as Fourier–Wigner transform [PDF]

open access: yesIntegral Transforms and Special Functions, 2015
6 pages.
Agorram, Fatima   +3 more
openaire   +2 more sources

Application of the modernized wavelet transform to highlight the dynamics of changes in the duration of intervals during electrocardiogram diagnostics [PDF]

open access: yesDigital Diagnostics
BACKGROUND: Cardiovascular diseases represent the leading cause of mortality worldwide [1]. A significant proportion of medical diagnoses are based on the evaluation of characteristic points in the electrocardiographic signal.
Charif Alali, Dmitry A. Balalkin
doaj   +1 more source

The hermite and fourier transforms in sparse reconstruction of sinusoidal signals [PDF]

open access: yes2018 7th Mediterranean Conference on Embedded Computing (MECO), 2018
Student paper submitted to Mediterranean Conference on Embedded Computing ...
Valentina Konatar, Maja Vesovic
openaire   +2 more sources

Image filtering based on the one-dimensional Hermite transform combining triangular filter and fusion approach

open access: yesAutomatika
The paper introduces a novel image filtering method that combines smoothing in the Hermite transform using a triangular filter with image fusion for noise reduction and quality enhancement.
Djordje Stanković   +3 more
doaj   +1 more source

Detection and classification of partial discharge signals using Hermite transform and expectation-maximization approach

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper proposes a novel approach for detecting and classifying partial discharge transients in power cable signals recorded from substation environments, based on analysis in the Hermite transform domain.
Djordje Stanković   +3 more
doaj   +1 more source

A Continuous Characterization of Triebel-Lizorkin Spaces Associated with Hermite Expansions

open access: yesJournal of Function Spaces, 2015
We study the properties of the Triebel-Lizorkin spaces associated with the multidimensional Hermite expansions on Rd (d≥1). In addition to the endpoint estimates, we give the continuous characterizations of these spaces via harmonic and thermic ...
Shuli Gong, Bolin Ma, Zunwei Fu
doaj   +1 more source

Biquadratic Transformations for Checking the Hurwitz Stability via the Schur Stability

open access: yesAsian Journal of Control, EarlyView.
ABSTRACT Bilinear transformations such as the Möbius transformation have been used to study Hurwitz stability by means of Schur stability, or vice versa. However, the use of a well‐known Möbius transformation has pathological cases, hence Jalili–Kharaajoo and Araabi investigated and found a biquadratic transformation to study Schur stability by means ...
Baltazar Aguirre‐Hernández
wiley   +1 more source

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