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Research On Chaotic Synchronization Method Of Coronary Artery System Based On Fuzzy Control

Posted on:2020-02-08Degree:MasterType:Thesis
Country:ChinaCandidate:H L CuiFull Text:PDF
GTID:2434330575451460Subject:Computer technology
Abstract/Summary:PDF Full Text Request
This paper focuses on chaos synchronization control of the coronary artery system.Blood enters the heart through the coronary arteries,transporting nutrients to the heart.Cholesterol and fat deposits form a blockage in the arteries,which narrows the vascular passage.In severe cases,it causes angina and other diseases due to insufficient blood supply.In the theoretical research on the chaos synchronization control of coronary artery system,most of the literatures focus on the treatment of the time delay factors of coronary artery system.In this paper,fuzzy modeling and fuzzy control methods are mainly used to study the chaotic synchronization control of coronary artery system,which is mainly divided into the following two aspects.Aiming at the complex nonlinearity of the coronary artery system,this paper uses the sector fuzzy modeling method to construct the fuzzy model of the coronary artery system dynamics equation,and derives the T-S fuzzy model of the coronary artery system.The T-S fuzzy system can be approximated with arbitrary precision.The characteristics of the nonlinear system greatly improved the control effect.Through the PDC control strategy,a PDC controller was constructed,so that the coronary master-slave system reached chaotic synchronization.In order to further reduce the conservation,the Lyapunov-Krasovskii functional with triple integral term is constructed,and the improved Jensen inequality,Wirtinger inequality,Moon inequality combined with convex analysis method and free weight integral inequality are used in the process of Lyapunov-Krasovskii functional derivation.The method of scaling down results in less conservative results than before.In the application of theoretical research to the actual treatment of coronary artery diseases,it is necessary to consider the control effect of controller on chaos synchronization of coronary artery system and whether it meets certain performance indexes under the condition of unknown and uncertain.The study of fuzzy chaos synchronous control for uncertain coronary artery system is introduced.By constructing uncertain coronary artery fuzzy system and fuzzy controller,the chaos synchronization of coronary artery system is finally realized.In this paper,the chaos synchronization control of coronary artery system is studied from the above two aspects,and the obtained results have certain reference value for the actual treatment of coronary artery disease.
Keywords/Search Tags:Coronary artery system, Chaos synchronization, T-S fuzzy control, PDC fuzzy controller
PDF Full Text Request
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