Naslov
Nonstationary Signals Information Content Estimation Based on the Local Renyi Entropy in the Time-Frequency Domain

Autori
Saulig, Nicoletta ; Viktor Sučić

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

Izvornik
Proceedings of the 2011 11th International Conference on Telecommunications (ConTel) / Thomas, Plank ; Markus, Löschnigg - Graz, 2011, 465-472

ISBN
978-1-61284-169-4

Skup
11th International Conference on Telecommunications (ConTel)

Mjesto i datum
Graz, Austrija, 15.06.2011. - 17.06.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rényi entropy; Time-Frequency Distributions; Nonstationary signals

Sažetak
A measure of complexity of a nonstationary multicomponent signal in the time-frequency plane can be obtained by using the Renyi entropy. If the complexity of a signal corresponds to the number of its components, then this information is measured as the Renyi entropy of the time-frequency distribution of the signal. However, the Renyi entropy of one of the signal components must be known a priori. In this paper, we focus on the detection of the number of components that are present in a short time interval of the signal time-frequency distribution, using the local Renyi entropy. Results are reported on both synthetic and real data, confirming that the local Renyi entropy is a valuable tool in estimating the local number of components present in the signal.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA