Naslov
INSTANTANEOUS COUNTING OF COMPONENTS IN NONSTATIONARY SIGNALS

Autori
Saulig, Nicoletta ; Pustelnik, Nelly ; Borgnat, Pierre ; Flandrin, Patrick ; Sučić, Viktor

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of European Signal Processing Conference EUSIPCO 2013 / - , 2013

Skup
European Signal Processing Conference EUSIPCO 2013

Mjesto i datum
Marakeš, Maroko, 09.09.2013. - 13.09.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Multicomponent Signal; Time-Frequency Analysis; R´enyi Entropy

Sažetak
In the case of multicomponent AM-FM signals, one bottleneck of mode extraction methods such as synchrosqueezing, is that the reconstruction of the individual components assumes some prior knowledge about their number. In order to reduce supervision, an entropy-based time-frequency method had been previously proposed for automatically estimating the instantaneous number of such components. An analytic treatment of this approach is first given, assessing its performance and limitations, in particular with respect to the R´enyi entropy order and the amplitude ratio. Based on this analysis, an iterative strategy is then proposed, that is shown to be effective in the case of unequal amplitudes and applicable to real data signals with a moderate level of noise.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA