Journal
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
Volume 47, Issue 7, Pages 1188-1193Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2002.800670
Keywords
adaptive filter; adaptive identifier; frequency estimation; observer
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Online estimation of the frequencies of a signal which Is the sum of n sinusoidals with unknown amplitudes, frequencies and phases is made through yet another well-known and simple system theoretical tool-adaptive identifiers. Convergence of the proposed estimator is proved. The new frequency estimator is of 3n order, as compared to the order 5n - I resulting from Marino-Tomei observers. Results are demonstrated via simulation.
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