ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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vol 67 / February, 2024
Article

DOI 10.17586/0021-3454-2021-64-9-789-793

UDC 681.51

ALGORITHM FOR ESTIMATING THE VARIABLE FREQUENCY OF SINUSOIDAL SIGNAL

B. A. Nizomutdinov
ITMO University, Saint Petersburg, 197101, Russian Federation; Leading Analyst


S. V. Shavetov
ITMO University; Student


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


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Abstract. The problem of identifying time-varying frequency of sinusoidal signal is considered. Using the iterative parameterization procedure, dynamic regressor extension and mixing technique, and Luenberger observer, estimations of non-stationary parameters are designed. Presented results of numerical simulation, the proposed algorithm efficiency is demonstrated.
Keywords: parameter identification, non-stationary frequency, Luenberger observer, DREM

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