Pregled bibliografske jedinice broj: 530745
Detecting the number of components of multicomponent nonstationary signals using the Rényi entropy of their time-frequency distributions
Detecting the number of components of multicomponent nonstationary signals using the Rényi entropy of their time-frequency distributions // Proceedings of International Conference on Innovative Technologies IN-TECH 2011 / J. Kudlaček, Z. Car, T. Pepelnjak, M. Pakosta (ur.).
Bratislava: Tisak AS, s.r.o., Jaromer, 2011. str. 304-307 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Detecting the number of components of multicomponent nonstationary signals using the Rényi entropy of their time-frequency distributions
Autori
Korač, Dragan ; Saulig, Nicoletta ; Sučić, Viktor ; Seršić, Damir
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of International Conference on Innovative Technologies IN-TECH 2011
/ J. Kudlaček, Z. Car, T. Pepelnjak, M. Pakosta - Bratislava : Tisak AS, s.r.o., Jaromer, 2011, 304-307
ISBN
978-80-904502-6-4
Skup
IN-TECH 2011
Mjesto i datum
Bratislava, Slovačka, 01.09.2011. - 03.09.2011
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Rényi entropy ; Time-Frequency Distributions ; Nonstationary signals
Sažetak
In this paper, the Rényi entropy has been applied to different time-frequency distributions (TFDs) (namely, the Wigner-Ville distribution, the Choi-Williams distribution, and the spectrogram), with the purpose of determining which of the mentioned TFDs have best properties for estimation of the number of components when there is no a priori knowledge of the signal. The optimal parameter of the Rényi entropy, , for each TFD is determined. Simulations show that the Wigner-Ville distribution has best properties among the selected TFDs since it is invariant to time duration and frequency bandwidth variations of the analysed signal. The concept of a class, when the Rényi entropy is applied to TFDs, is also introduced.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Projekti:
036-0362214-1989 - Inteligentne metode obrade i analize slika (Lončarić, Sven, MZO ) ( CroRIS)
069-0362214-1575 - Optimizacija i dizajn vremensko-frekvencijskih distribucija (Sučić, Viktor, MZOS ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb,
Tehnički fakultet, Rijeka
