نتایج جستجو برای: fractional complex transform

تعداد نتایج: 943376  

2008
NÉJI BETTAIBI H. BETTAIEB

In this paper, we consider a q-analogue of the Dunkl operator on R, we define and study its associated Fourier transform which is a q-analogue of the Dunkl transform. In addition to several properties, we establish an inversion formula and prove a Plancherel theorem for this q-Dunkl transform. Next, we study the q-Dunkl intertwining operator and its dual via the q-analogues of the Riemann-Liouv...

2002
Tatiana Alieva Martin J. Bastiaans

The fractional cosine and sine transforms – closely related to the fractional Fourier transform, which is now actively used in optics and signal processing – are introduced and their main properties and possible applications are discussed.

Journal: :IEEE Trans. Signal Processing 2001
Sudarshan Shinde Vikram M. Gadre

The fractional Fourier transform (FrFT) can be thought of as a generalization of the Fourier transform to rotate a signal representation by an arbitrary angle in the time–frequency plane. A lower bound on the uncertainty product of signal representations in two FrFT domains for real signals is obtained, and it is shown that a Gaussian signal achieves the lower bound. The effect of shifting and ...

Journal: :IEEE Trans. Signal Processing 1999
M. Fatih Erden M. Alper Kutay Haldun M. Özaktas

Filtering in a single time domain or in a single frequency domain has recently been generalized to filtering in a single fractional Fourier domain. In this correspondence, we further generalize this to repeated filtering in consecutive fractional Fourier domains and discuss its applications to signal restoration through an illustrative example.

Journal: :IEEE Trans. Information Theory 1991
Fumio Kanaya Kenji Nakagawa

A theorem characterizing fractional Brownian motion by Index Terms -Wavelet transform, fractional Brownian motion.the covariance structure of its wavelet transform is established.

2001
Aydin Akan Veli Shakhmurov Yalçin Çekiç

We present a fractional Gabor expansion on a general, nonrectangular time-frequency lattice. The traditional Gabor expansion represents a signal in terms of time and frequency shifted basis functions, called Gabor logons. This constantbandwidth analysis results in a fixed, rectangular time frequency plane tiling. Many of the practical signals require a more flexible, non-rectangular time-freque...

2015
Jitendra Kumar Dubey Anuj Kumar S. K. Upadhyay

In this paper, some properties of pseudo-differential operators, SG-elliptic partial differential equations with polynomial coefficients and localization operators on space S ν (R), are studied by using fractional Fourier transform. AMS Mathematics Subject Classification (2010): 35S05, 46F12, 47G30.

Journal: :Complex Analysis and Operator Theory 2012

Journal: :Optics Communications 2005

Journal: :Journal of Computational and Applied Mathematics 1994

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