Results 21 to 30 of about 99,259 (331)

Radar matched filtering using the fractional fourier transform [PDF]

open access: yes, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine   +2 more
core   +1 more source

The Fractional Fourier Transform and Harmonic Oscillation [PDF]

open access: yesNonlinear Dynamics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kutay M.A., Ozaktas H.M.
openaire   +6 more sources

Quantum Weighted Fractional-Order Transform

open access: yesFractal and Fractional, 2023
Quantum Fourier transform (QFT) transformation plays a very important role in the design of many quantum algorithms. Fractional Fourier transform (FRFT), as an extension of the Fourier transform, is particularly important due to the design of its quantum
Tieyu Zhao, Yingying Chi
doaj   +1 more source

Self Fourier functions and fractional Fourier transforms [PDF]

open access: yesOptics Communications, 1993
The Fourier transform is perhaps the most important analytical tool in wave optics. Hence Fourier-related concepts are likely to have an important on optics. We will likely recall two novel concepts and then show how they are interrelated. A self-Fourier function (SFF) [1,2] is a function whose Fourier transform is identical to itself.
Mendlovic, D.   +2 more
openaire   +4 more sources

Sampling and series expansion theorems for fractional Fourier and other transforms [PDF]

open access: yes, 2003
Cataloged from PDF version of article.We present muchbriefer and more direct and transparent derivations of some sampling and series expansion relations for fractional Fourier and other transforms.
Candan, C., Ozaktas, H. M.
core   +1 more source

Computation of the fractional Fourier transform

open access: yesApplied and Computational Harmonic Analysis, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bultheel, Adhemar   +1 more
openaire   +4 more sources

On fractional Fourier transform moments [PDF]

open access: yesIEEE Signal Processing Letters, 2000
Based on the relation between the ambiguity function represented in a quasi-polar coordinate system and the fractional power spectra, the fractional Fourier transform moments are introduced. Important equalities for the global second-order fractional Fourier transform moments are derived and their applications for signal analysis are discussed.
MJ Martin Bastiaans, Tatiana Alieva
openaire   +3 more sources

Approximation Theorems Associated with Multidimensional Fractional Fourier Transform and Applications in Laplace and Heat Equations

open access: yesFractal and Fractional, 2022
In this paper, we establish two approximation theorems for the multidimensional fractional Fourier transform via appropriate convolutions. As applications, we study the boundary and initial problems of the Laplace and heat equations with chirp functions.
Yinuo Yang   +3 more
doaj   +1 more source

Fractional Fourier transform as a tool for analyzing beam propagation and spherical mirror resonators [PDF]

open access: yes, 1994
Cataloged from PDF version of article.The complex amplitude distributions on two spherical reference surfaces of given curvature and spacing are simply related by a fractional Fourier transform.
Mendlovic, D., Ozaktas, H. M.
core   +1 more source

The discrete fractional Fourier transformation [PDF]

open access: yesProceedings of Third International Symposium on Time-Frequency and Time-Scale Analysis (TFTS-96), 2002
Based on the fractional Fourier transformation of sampled periodic functions, the discrete form of the fractional Fourier transformation is obtained. It is found that for a certain dense set of fractional orders it is possible to define a discrete transformation. Also, for its efficient computation a fast algorithm, which has the same complexity as the
Arıkan, Orhan   +3 more
openaire   +3 more sources

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