Title :
Frequency estimation of a saturated signal with a hybrid observer
Author :
Carnevale, Daniele ; Astolfi, Alessandro
Abstract :
A hybrid observer to estimate the frequency of a saturated signal is proposed. The saturated single-frequency sinusoidal signal is assumed to be generated by an hybrid model with unknown parameters, related to the signal angular frequency and bias, estimated on-line globally by a hybrid observer. Global exponential convergence of the estimation error and robustness against unknown saturation level is discussed.
Keywords :
frequency estimation; observers; robust control; signal processing; frequency estimation; global exponential convergence; hybrid observer; robustness; saturated single-frequency sinusoidal signal; Amplitude estimation; Convergence; Estimation error; Frequency estimation; Frequency measurement; Hybrid power systems; Robustness; Signal generators; Signal processing; Telecommunication control;
Conference_Titel :
Decision and Control, 2008. CDC 2008. 47th IEEE Conference on
Conference_Location :
Cancun
Print_ISBN :
978-1-4244-3123-6
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2008.4738642
