Naslov
Instantaneous Frequency Estimation of Multicomponent Signals

Autori
Lerga, Jonatan ; Sučić, Viktor ; Saulig, Nicoletta

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, ostalo

Skup
Workshop on the Time-Frequency Analysis and Applications

Mjesto i datum
Kotor, Crna Gora, 06.06.2011. - 10.06.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
Instantaneous frequency; Instantaneous frequency estimation; Multicomponent signals; Time-frequency distributions; Time-frequency signal analysis

Sažetak
One of the key parameters which provides important information about time-varying spectral changes in a non-stationary signal is its instantaneous frequency (IF). The most challenging IF estimation problem is to find the individual component IF of a multicomponent non-stationary signal corrupted by noise. The IF estimation error exhibits bias and variance dependant on the TFR analysis window width. Due to the opposite tendency of bias and variance with respect to the lag window width, a proper width can been found as the one providing the bias-to-variance tradeoff that reduces the estimation error. The author has proposed a robust IF estimator with an adaptive time-varying lag window width, which is capable of providing a proper bias-to-variance tradeoff.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

POVEZANOST RADA