Title :
Hybrid Observer for Global Frequency Estimation of Saturated Signals
Author :
Carnevale, Daniele ; Astolfi, Alessandro
Author_Institution :
Dipt. di Inf., Sist. e Produzione (DISP), Univ. di Roma "Tor Vergata", Rome, Italy
Abstract :
A hybrid observer for the on-line global estimation of the frequency and the bias of a saturated sinusoidal signal is proposed. Robustness of the observer against unknown saturation level is discussed.
Keywords :
frequency estimation; observers; signal processing; global frequency estimation; hybrid observer; online global estimation; saturated signals; saturated sinusoidal signal; Amplitude estimation; Control systems; Frequency estimation; Image processing; Phase estimation; Process control; Robustness; Signal analysis; Signal processing; Telecommunication control; Frequency estimation; hybrid observer; saturation;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2009.2029395
