Comparison of Measures of Time-Frequency Distribution Optimization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F16%3APU121159" target="_blank" >RIV/00216305:26220/16:PU121159 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/7765378" target="_blank" >https://ieeexplore.ieee.org/document/7765378</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ICUMT.2016.7765378" target="_blank" >10.1109/ICUMT.2016.7765378</a>

Result language
angličtina
Original language name
Comparison of Measures of Time-Frequency Distribution Optimization
Original language description
This article describes the problems of time-frequency representation optimization. The goal is to achieve compromise between good resolution and reduced cross terms. The quantitative measures used for this optimization are described. For the case of a simulated signal a measure based on mean squared error is proposed. The proposed method compares an optimized result to the ideal representation obtained as sum of Wigner-Ville distributions of mono-component signals. Three simulated signals are used to compare optimization of Choi-Williams Distribution, Gabor spectrogram, Short-time Fourier transform and S-method. The optimization is realized on the basis of four quantitative measures: Rényi entropy, Jones-Parks measure, Stankovic measure and proposed method. Results show problematic use of Jones-Parks measure for optimization and comparable optimization of all tested time-frequency distributions by means of three usable measures. For practical use with real signal, S-method with Rényi or Stankovic measure is recommended.
Czech name
—
Czech description
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Project
<a href="/en/project/LO1210" target="_blank" >LO1210: Energy for Sustainable Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops - ICUMT
ISBN
978-1-4673-8817-7
ISSN
—
e-ISSN
—
Number of pages
6
Pages from-to
314-319
Publisher name
Neuveden
Place of publication
Lisabon
Event location
Lisabon
Event date
Oct 18, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000392263300056

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