Second-Order Newton-Based Extremum Seeking for Multivariable Static Maps

Fuente: arXiv
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Autores principales: Ghaffari, Azad, Oliveira, Tiago Roux
Formato: Preprint
Publicado: 2024
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author Ghaffari, Azad
Oliveira, Tiago Roux
author_facet Ghaffari, Azad
Oliveira, Tiago Roux
contents A second-order Newton-based extremum seeking (SONES) algorithm is presented to estimate directional inflection points for multivariable static maps. The design extends the first-order Newton-based extremum seeking algorithm that drives the system toward its peak point. This work provides perturbation matrices to estimate the second- and third-order derivatives necessary for implementation of the SONES. A set of conditions are provided for the probing frequencies that ensure accurate estimation of the derivatives. A differential Riccati filter is used to calculate the inverse of the third-order derivative. The local stability of the new algorithm is proven for general multivariable static maps using averaging analysis. The proposed algorithm ensures uniform convergence toward directional inflection point without requiring information about the curvature of the map and its gradient. Simulation results show the effectiveness of the proposed algorithm.
format Preprint
id arxiv_https___arxiv_org_abs_2404_01103
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Second-Order Newton-Based Extremum Seeking for Multivariable Static Maps
Ghaffari, Azad
Oliveira, Tiago Roux
Systems and Control
A second-order Newton-based extremum seeking (SONES) algorithm is presented to estimate directional inflection points for multivariable static maps. The design extends the first-order Newton-based extremum seeking algorithm that drives the system toward its peak point. This work provides perturbation matrices to estimate the second- and third-order derivatives necessary for implementation of the SONES. A set of conditions are provided for the probing frequencies that ensure accurate estimation of the derivatives. A differential Riccati filter is used to calculate the inverse of the third-order derivative. The local stability of the new algorithm is proven for general multivariable static maps using averaging analysis. The proposed algorithm ensures uniform convergence toward directional inflection point without requiring information about the curvature of the map and its gradient. Simulation results show the effectiveness of the proposed algorithm.
title Second-Order Newton-Based Extremum Seeking for Multivariable Static Maps
topic Systems and Control
url https://arxiv.org/abs/2404.01103