ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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Issue
vol 67 / March, 2024
Article
UDC 681.5.03

INCREASE IN ACCURACY OF ESTIMATION OF SINUSOIDAL SIGNAL FREQUENCY WITH THE USE OF NONLINEAR FILTER

A. A. Bobtsov
ITMO University, Saint Petersburg, 197101, Russian Federation; Head of the School of Computer Technologies and Control, Professor at the Faculty of Control Systems and Robotics, Head of the Adaptive and Nonlinear Control Systems Lab


A. V. Krylov
Close Corporation Navis Ltd; Head of Department


A. A. Pyrkin
ITMO University, Saint Petersburg, 197101, Russian Federation; Professor, Dean


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Abstract. A new frequency identification scheme for sinusoidal signal with the use of a nonlinear filter is considered. Compared to existing approaches, the proposed algorithm allows the accuracy to be improved in a shorter time.
Keywords: identification, harmonic signal, filtration.