Detail publikačního výsledku

A New Method for Interference Reduction in the Smoothed Pseudo Wigner-Ville Distribution

PIKULA, S.; BENEŠ, P.

Originální název

A New Method for Interference Reduction in the Smoothed Pseudo Wigner-Ville Distribution

Anglický název

A New Method for Interference Reduction in the Smoothed Pseudo Wigner-Ville Distribution

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

This article presents a new method facilitating interference reduction in the Wigner-Ville distribution, which is used for nonstationary signal analysis, for example in machine condition monitoring. The algorithm is based on multiple Smoothed Pseudo Wigner-Ville distributions: differently smoothed time-frequency planes are compared and, for every point, a cross-term free value is calculated on the basis of optimal smooth estimation. The proposed approach is compared with the Gabor-Wigner transform, the Zhao-Atlas-Marks distribution, and the Choi-Williams distribution. Five time-frequency Gaussian atoms and a bat echolocation chirp are used as the testing signals. The Rényi entropy, the ratio of norms, the Stanković measure, and the mean squared error are used as quantitative measures to demonstrate the promising results of the proposed method.

Anglický abstrakt

This article presents a new method facilitating interference reduction in the Wigner-Ville distribution, which is used for nonstationary signal analysis, for example in machine condition monitoring. The algorithm is based on multiple Smoothed Pseudo Wigner-Ville distributions: differently smoothed time-frequency planes are compared and, for every point, a cross-term free value is calculated on the basis of optimal smooth estimation. The proposed approach is compared with the Gabor-Wigner transform, the Zhao-Atlas-Marks distribution, and the Choi-Williams distribution. Five time-frequency Gaussian atoms and a bat echolocation chirp are used as the testing signals. The Rényi entropy, the ratio of norms, the Stanković measure, and the mean squared error are used as quantitative measures to demonstrate the promising results of the proposed method.

Klíčová slova

Wigner-Ville Distribution; Smoothed Pseudo Wigner-Ville Distribution; Reduced Interference; Time-Frequency Distribution; Quantitative measure

Klíčová slova v angličtině

Wigner-Ville Distribution; Smoothed Pseudo Wigner-Ville Distribution; Reduced Interference; Time-Frequency Distribution; Quantitative measure

Autoři

PIKULA, S.; BENEŠ, P.

Vydáno

02.09.2014

ISBN

1178-5608

Kniha

Proceedings of the 8th International Conference on Sensing Technology

ISSN

1178-5608

Periodikum

International Journal on Smart Sensing and Intelligent Systems

Svazek

2014

Číslo

1

Stát

Nový Zéland

Strany od

599

Strany do

603

Strany počet

5

BibTex

@article{BUT109467,
  author="Stanislav {Pikula} and Petr {Beneš}",
  title="A New Method for Interference Reduction in the Smoothed Pseudo Wigner-Ville Distribution",
  journal="International Journal on Smart Sensing and Intelligent Systems",
  year="2014",
  volume="2014",
  number="1",
  pages="599--603",
  issn="1178-5608"
}