Results 11 to 20 of about 101,618 (327)

The discrete fractional Fourier transform [PDF]

open access: greenIEEE Transactions on Signal Processing, 1999
Summary: We propose and consolidate a definition of the discrete fractional Fourier transform that generalizes the discrete Fourier transform (DFT) in the same sense that the continuous fractional Fourier transform generalizes the continuous ordinary Fourier transform.
Candan, C., Kutay, M. A., Ozaktas, H. M.
openaire   +8 more sources

Study on the Mainardi beam through the fractional Fourier transforms system [PDF]

open access: diamondКомпьютерная оптика, 2018
In this paper, we introduced the Mainardi beam and indicated its attributes under the Fractional Fourier transform for power variations of Fractional Fourier transform.
Forouzan Habibi   +2 more
doaj   +2 more sources

Implementation of quantum and classical discrete fractional Fourier transforms [PDF]

open access: goldNature Communications, 2016
Fourier analysis has become a standard tool in contemporary science. Here, Weimann et al. report classical and quantum optical realizations of the discrete fractional Fourier transform, a generalization of the Fourier transform, with potential ...
Steffen Weimann   +11 more
doaj   +2 more sources

Identification of Sonar Detection Signal Based on Fractional Fourier Transform

open access: goldPolish Maritime Research, 2018
Aiming at the source of underwater acoustic emission, in order to identify the enemy emission sonar source accurately. Using the digital watermarking technology and combining with the good time-frequency characteristics of fractional Fourier transform ...
Biao Wang   +3 more
doaj   +2 more sources

Abelian and Tauberian results for the fractional Fourier cosine (sine) transform

open access: goldAIMS Mathematics
In this paper, we presented Tauberian type results that intricately link the quasi-asymptotic behavior of both even and odd distributions to the corresponding asymptotic properties of their fractional Fourier cosine and sine transforms.
Snježana Maksimović   +4 more
doaj   +2 more sources

One dimensional fractional frequency Fourier transform by inverse difference operator [PDF]

open access: goldAdvances in Difference Equations, 2019
This article aims to develop fractional order convolution theory to bring forth innovative methods for generating fractional Fourier transforms by having recourse to solutions for fractional difference equations.
Dumitru Baleanu   +3 more
doaj   +2 more sources

Solving Generalized Heat and Generalized Laplace Equations Using Fractional Fourier Transform

open access: yesFractal and Fractional, 2023
In the present work, the main objective is to find the solution of the generalized heat and generalized Laplace equations using the fractional Fourier transform, which is a general form of the solution of the heat equation and Laplace equation using the ...
Sri Sulasteri   +4 more
doaj   +1 more source

Simplified fractional Fourier transforms [PDF]

open access: yesJournal of the Optical Society of America A, 2000
The fractional Fourier transform (FRFT) has been used for many years, and it is useful in many applications. Most applications of the FRFT are based on the design of fractional filters (such as removal of chirp noise and the fractional Hilbert transform) or on fractional correlation (such as scaled space-variant pattern recognition).
Pei, Soo-Chang, Ding, Jian-Jiun
openaire   +2 more sources

Fractional Hartley Transform and its Inverse

open access: yesمجلة بغداد للعلوم, 2023
The Hartley transform generalizes to the fractional Hartley transform (FRHT) which gives various uses in different fields of image encryption. Unfortunately, the available literature of fractional Hartley transform is unable to provide its inversion ...
Vasant Gaikwad
doaj   +1 more source

Home - About - Disclaimer - Privacy