Title :
Switched Algorithm for Frequency Estimation with Noise Rejection
Author :
Bobtsov, Alexey A. ; Efimov, Denis ; Pyrkin, Anton A. ; Zolghadri, Ali
Author_Institution :
Dept. of Control Syst. & Inf., St. Petersburg State Univ. of Inf. Technol. Mech. & Opt., St. Petersburg, Russia
Abstract :
The problem of parametric estimation of harmonic signals in the presence of noise and computational constraints is an important issue in many engineering fields. This technical note proposes an algorithm for frequency and bias estimation under noisy measurements. An approach for high-frequency noise rejection by switching is proposed and applied for improvement of the estimation accuracy. Efficiency of the approach is demonstrated through numerical simulations.
Keywords :
frequency estimation; numerical analysis; signal denoising; bias estimation; computational constraints; estimation accuracy improvement; frequency estimation; harmonic signal parametric estimation; high-frequency noise rejection; noise rejection; numerical simulations; switched algorithm; Accuracy; Convergence; Estimation; Frequency estimation; Noise; Noise measurement; Switches; Adaptive observers; disturbance rejection; frequency estimation;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2012.2186685
