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Robust Frequency Estimation of Multi-Harmonic Signals

Abstract : In this paper we propose a robust estimator for the frequencies of biased multi-harmonic signals in the presence of unknown additive disturbances. The estimator consists of a continuous-time stable linear system and a discrete-time recursive least-squares identifier. In absence of additive disturbances, the proposed design guarantees global exponential convergence to the optimal (in the least-squares sense) parameter estimates. In presence of disturbances, instead, an input-to-state stability property relative to such optimal estimates is proven to hold.
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Conference papers
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Contributor : François Chaplais Connect in order to contact the contributor
Submitted on : Wednesday, December 22, 2021 - 2:42:09 PM
Last modification on : Tuesday, January 18, 2022 - 2:26:08 PM


  • HAL Id : hal-03500680, version 1


Ilario Antonio Azzollini, Michelangelo Bin, Pauline Bernard, Lorenzo Marconi. Robust Frequency Estimation of Multi-Harmonic Signals. European Control Conference, 2021, Jul 2021, Rotterdam, Netherlands. ⟨hal-03500680⟩



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