T-S fuzzy observer-based adaptive tracking control for biological system with stage structure

In this paper, the T-S fuzzy observer-based adaptive tracking control of the biological system with stage structure is studied. First, a biological model with stage structure is established, and its stability at the equilibrium points is analyzed. Considering the impact of reducing human activities...

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Main Authors: Yi Zhang, Yue Song, Song Yang
Format: Article
Language:English
Published: AIMS Press 2022-07-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2022451?viewType=HTML
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author Yi Zhang
Yue Song
Song Yang
author_facet Yi Zhang
Yue Song
Song Yang
author_sort Yi Zhang
collection DOAJ
description In this paper, the T-S fuzzy observer-based adaptive tracking control of the biological system with stage structure is studied. First, a biological model with stage structure is established, and its stability at the equilibrium points is analyzed. Considering the impact of reducing human activities on the biological population, an adaptive controller is applied to the system. Since it is difficult to measure density directly, a fuzzy state observer is designed, which is used to estimate the density of biological population. At the same time, the density of predators can track the desired density through the adjustment of adaptive controller. The stability of the biological system is guaranteed, and the observer error and tracking error are shown to converge to zero. Finally, the effectiveness of the proposed adaptive control method is verified by numerical simulation.
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spelling doaj.art-c8b3584c471d4b8c8b91681cfd64f08c2022-12-22T02:13:58ZengAIMS PressMathematical Biosciences and Engineering1551-00182022-07-0119109709972910.3934/mbe.2022451T-S fuzzy observer-based adaptive tracking control for biological system with stage structureYi Zhang0Yue Song1Song Yang21. School of Science, Shenyang University of Technology, Shenyang 110870, China1. School of Science, Shenyang University of Technology, Shenyang 110870, China2. Station for Drug and Instrument Control of Shenyang Joint Logistics Support Center, Shenyang 110026, ChinaIn this paper, the T-S fuzzy observer-based adaptive tracking control of the biological system with stage structure is studied. First, a biological model with stage structure is established, and its stability at the equilibrium points is analyzed. Considering the impact of reducing human activities on the biological population, an adaptive controller is applied to the system. Since it is difficult to measure density directly, a fuzzy state observer is designed, which is used to estimate the density of biological population. At the same time, the density of predators can track the desired density through the adjustment of adaptive controller. The stability of the biological system is guaranteed, and the observer error and tracking error are shown to converge to zero. Finally, the effectiveness of the proposed adaptive control method is verified by numerical simulation.https://www.aimspress.com/article/doi/10.3934/mbe.2022451?viewType=HTMLstage structureadaptive controltracking controlt-s fuzzyfuzzy state observerbiological system
spellingShingle Yi Zhang
Yue Song
Song Yang
T-S fuzzy observer-based adaptive tracking control for biological system with stage structure
Mathematical Biosciences and Engineering
stage structure
adaptive control
tracking control
t-s fuzzy
fuzzy state observer
biological system
title T-S fuzzy observer-based adaptive tracking control for biological system with stage structure
title_full T-S fuzzy observer-based adaptive tracking control for biological system with stage structure
title_fullStr T-S fuzzy observer-based adaptive tracking control for biological system with stage structure
title_full_unstemmed T-S fuzzy observer-based adaptive tracking control for biological system with stage structure
title_short T-S fuzzy observer-based adaptive tracking control for biological system with stage structure
title_sort t s fuzzy observer based adaptive tracking control for biological system with stage structure
topic stage structure
adaptive control
tracking control
t-s fuzzy
fuzzy state observer
biological system
url https://www.aimspress.com/article/doi/10.3934/mbe.2022451?viewType=HTML
work_keys_str_mv AT yizhang tsfuzzyobserverbasedadaptivetrackingcontrolforbiologicalsystemwithstagestructure
AT yuesong tsfuzzyobserverbasedadaptivetrackingcontrolforbiologicalsystemwithstagestructure
AT songyang tsfuzzyobserverbasedadaptivetrackingcontrolforbiologicalsystemwithstagestructure