Results 141 to 150 of about 19,683 (177)

Discrete Wigner Distribution Function Construction

, 2009
openaire   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

About SIC POVMs and discrete Wigner distributions

Journal of Optics B: Quantum and Semiclassical Optics, 2005
A set of d2 vectors in a Hilbert space of dimension d is called equiangular if each pair of vectors encloses the same angle. The projection operators onto these vectors define a POVM which is distinguished by its high degree of symmetry. Measures of this kind are called symmetric informationally complete, or SIC POVMs for short, and could be applied ...
Colin, Samuel, Corbett, John, Durt, Thomas, Gross, David   +3 more
openaire   +4 more sources

Discrete time and frequency Wigner-Ville distribution: Moyal's formula and aliasing

IEEE Signal Processing Letters, 2005
In this letter, we propose a new definition of the discrete time and frequency Wigner-Ville distribution. The proposed distribution not only displays a readable representation (small aliasing) but also exhibits unitarity and is easy to compute. We compare the time-frequency representation associated with this proposed definition with other existing ...
Chassande-Mottin, Eric, Pai, Archana
openaire   +2 more sources

Wigner distribution in linear canonical domains: properties and discretization

2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019
In our previous work, we introduced a kind of closed-form linear canonical transform (LCT) based Wigner distribution (WD), namely, the closed-form instantaneous cross-correlation function type of WD (CICFWD), and discussed its applications in non-stationary signal separation and detection. However, some related theoretical foundations are still unknown.
openaire   +1 more source

A contribution to the unaliased discrete-time Wigner distribution

The Journal of the Acoustical Society of America, 1993
This paper presents a new closed form analytical definition of the unaliased discrete-time Wigner distribution (DTWD), which arises naturally from its continuous-time counterpart, and is straightforwardly implementable for digital signal processing. This DTWD possesses properties that resemble those of the continuous time case.
openaire   +1 more source

A discrete pseudo Wigner distribution spread spectrum detection procedure employing complex spreading sequences

Proceedings of COMSIG '94 - 1994 South African Symposium on Communications and Signal Processing, 2002
An efficient quadratic time-frequency (TF) discrete pseudo Wigner distribution (DPWD) based detection procedure is proposed for utilisation in direct sequence spread spectrum (DSSS) receivers. A class of complex generalised chirp-like (GCL) perfect-squares minimum-phase constant-amplitude-zero-autocorrelation (PS-MP CAZAC) signature or spreading ...
D.J. van Wyk, L.P. Linde
openaire   +1 more source

The Modified Discrete Wigner Distribution and its Application to Acoustic Well Logging

1984
The full wave acoustic well log gives a large amount of information about the surrounding formation, which is encoded into a complex wavetrain and is not easily interpretable. This paper presents a technique using the Wigner Distribution to recover some of the information encoded in these wavetrains.
Dwight D. Day, Rao Yarlagadda
openaire   +1 more source

Efficient computation of the discrete Wigner-Ville distribution

2012
To ensure that the discrete Wigner-Ville distribution (DWVD) does not contain aliasing terms, the analytic signal is normally used instead of the real signal. However, the computation of the analytic signal amounts to most of the computation time.
Chan, Shingchow, Ho, KaLeung
openaire   +1 more source

Signal reconstruction from discrete-time Wigner distribution

2014
Master of ...
openaire   +1 more source

Discrete wigner distribution and half-integer representations of discrete-time signals and systems

2020
ÖZET AYRIK WIGNER DAĞILIMI VE BUÇUKLU SAYILARLA AYRIK ZAMANLI SİNYAL VE SİSTEMLERİN TEMSİLİ Burhan Gülbahar Elektrik ve Elektronik Mühendisliği Bölümü Yüksek Lisans Tez Yöneticisi: Dr. Haldun Özaktaş Şubat 2002 Bu tezde sürekli Wigner dağılımının ve onun iki boyutlu Fourier dönüşümü olan be lirsizlik fonksiyonunun ayrık karşılığı tanımlanmıştır ...
openaire   +1 more source