Results 91 to 100 of about 4,366 (193)

Relation between Quaternion Fourier Transform and Quaternion Wigner-Ville Distribution Associated with Linear Canonical Transform

Journal of Applied Mathematics, 2017
The quaternion Wigner-Ville distribution associated with linear canonical transform (QWVD-LCT) is a nontrivial generalization of the quaternion Wigner-Ville distribution to the linear canonical transform (LCT) domain. In the present paper, we establish a
Mawardi Bahri, Muh. Saleh Arif Fatimah
doaj   +1 more source

Applications of the Wigner Distribution Function in Signal Processing

EURASIP Journal on Advances in Signal Processing, 2005
We present a review of the applications of the Wigner distribution function in various areas of signal processing: amplitude and phase retrieval, signal recognition, characterization of arbitrary signals, optical systems and devices, and coupling ...
Dragoman Daniela
doaj   +1 more source

A note on ultrapolynomials and the Wigner distribution

Novi Sad Journal of Mathematics - NSJOM, 2000
Summary: Following Komatsu's approach to ultradistributions, we give new estimates on a class of ultrapolynomials. Our second result is an estimate on the growth of the Wigner distribution on a space of Gelfand-Shilov type. The obtained results are important for theorems on boundedness of pseudodifferential operators on ultramodulation spaces quoted in
openaire   +1 more source

Kaon GTMDs in the Dyson–Schwinger equations using contact interaction

European Physical Journal C: Particles and Fields
An array of the kaon twist-two, three, four generalised transverse momentum dependent parton distributions (GTMDs) has been investigated within the framework of covariant and confining Dyson–Schwinger equations using contact interaction.
Jin-Li Zhang
doaj   +1 more source

Quantum Field Theory in the Weyl–Wigner Representation

Universe
The Wigner representation for quantum mechanics of particles is generalized to Bose fields. The standard Hilbert space quantization becomes, via the Weyl transform, a quantization method that consists of adding a Gaussian zeropoint field distribution to ...
Emilio Santos
doaj   +1 more source

Wigner negativity, random matrices and gravity

Journal of High Energy Physics
Given a choice of an ordered, orthonormal basis for a D-dimensional Hilbert space, one can define a discrete version of the Wigner function — a quasi-probability distribution which represents any quantum state as a real, normalized function on a discrete
Ritam Basu, Pratyusha Chowdhury, Anirban Ganguly, Souparna Nath, Onkar Parrikar, Suprakash Paul   +5 more
doaj   +1 more source

Wigner Functions

Encyclopedia
Wigner functions are a distribution function on phase space that allow to represent the state of a quantum-mechanical system. They are in many ways similar to classical phase space probability distributions, but can, in contrast to these, be negative.
Michael te Vrugt
doaj   +1 more source

Formulation of state projected centroid molecular dynamics: Microcanonical ensemble and connection to the Wigner distribution. [PDF]

J Chem Phys, 2017
Orr L, Hernández de la Peña L, Roy PN.
europepmc   +1 more source

Superimposed modal voltage based passive islanding detection of grid tied distributed generation using Wigner distribution function. [PDF]

Sci Rep
Albalawi H, Bukhari SBA, Alatwi AM, Wadood A.   +3 more
europepmc   +1 more source

Acoustic Signal Recognition of Partial Discharge Optical Fiber Sensors Using Time-Frequency Phase Composition. [PDF]

Sensors (Basel)
Jin X, Wang P, Guo P, Liu X, Wang Y.
europepmc   +1 more source