Estimation Algorithm Non-Stationary Frequency of the Sinusoidal Signal
Systems and Control
2021-09-21 v1 Systems and Control
Signal Processing
Abstract
The article considers the problem of identifying the variable frequency of a sinusoidal signal. To obtain a regression model of the signal, an iterative differentiation of the original analytical expression is performed, and the swapping lemma is applied. The estimation of the parameters of the non-stationary frequency is implemented using the dynamic expansion of the regressor and mixing (DREM) procedure and the Luenberger observer. As a result of the numerical simulation, the efficiency of the proposed algorithm is demonstrated, showing the convergence of the frequency estimate to the true value.
Cite
@article{arxiv.2109.09347,
title = {Estimation Algorithm Non-Stationary Frequency of the Sinusoidal Signal},
author = {S. I. Nizovtsev and S. V. Shavetov and A. A. Pyrkin},
journal= {arXiv preprint arXiv:2109.09347},
year = {2021}
}
Comments
11 pages, 3 figures