Title :
A hybrid observer for frequency estimation of saturated multi-frequency signals
Author :
Carnevale, D. ; Astolfi, A.
Author_Institution :
Dipt. di Inf., Sist. e Produzione (DISP), Univ. di Roma Tor Vergata, Rome, Italy
Abstract :
A hybrid observer to estimate the frequencies of a saturated multi-frequency signal is proposed. The observer is based on the Immersion and Invariance technique combined with a high-gain approach. This paper is a (semi-global) generalization of the result in [1] to the case of multiple frequencies.
Keywords :
frequency estimation; observers; signal processing; frequency estimation; high-gain approach; hybrid observer; immersion technique; invariance technique; saturated multifrequency signals; semi-global generalization; Convergence; Estimation error; Frequency estimation; History; Mathematical model; Observers; Time domain analysis;
Conference_Titel :
Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-61284-800-6
Electronic_ISBN :
0743-1546
DOI :
10.1109/CDC.2011.6160889
