Publication detail

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

PIKULA, S. BENEŠ, P.

Original Title

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

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

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

Authors

PIKULA, S.; BENEŠ, P.

RIV year

2014

Released

2. 9. 2014

ISBN

1178-5608

Book

Proceedings of the 8th International Conference on Sensing Technology

ISBN

1178-5608

Periodical

International Journal on Smart Sensing and Intelligent Systems

Year of study

2014

Number

1

State

New Zealand

Pages from

599

Pages to

603

Pages count

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"
}