nonlinear identification
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2022 ◽  
Vol 2022 ◽  
pp. 1-9
Author(s):  
Zhijun Fu ◽  
Yan Lu ◽  
Fang Zhou ◽  
Yaohua Guo ◽  
Pengyan Guo ◽  
...  

This paper deals with adaptive nonlinear identification and trajectory tracking problem for model free nonlinear systems via parametric neural network (PNN). Firstly, a more effective PNN identifier is developed to obtain the unknown system dynamics, where a parameter error driven updating law is synthesized to ensure good identification performance in terms of accuracy and rapidity. Then, an adaptive tracking controller consisting of a feedback control term to compensate the identified nonlinearity and a sliding model control term to deal with the modeling error is established. The Lyapunov approach is synthesized to ensure the convergence characteristics of the overall closed-loop system composed of the PNN identifier and the adaptive tracking controller. Simulation results for an AFS/DYC system are presented to confirm the validity of the proposed approach.


2021 ◽  
Vol 2083 (4) ◽  
pp. 042035
Author(s):  
Xiaoping Gou ◽  
WanJun Zhang ◽  
Feng Zhang ◽  
Yu Qi ◽  
Wenlan Zhang ◽  
...  

Abstract Aiming at the problems of non-linearity in physical exercise, difficulty in predictive model identification control, and difficulty in exercise in control target. A nonlinear identification adaptive control algorithm based on physical exercise is proposed, and a nonlinear identification adaptive control system based on physical exercise is established and simulated with MATLAB. Simulation results show that the recognition ability of physical exercise is strong, which improves the requirements of physical exercise quality, and has the advantages of simple control algorithm, high control accuracy and strong anti-interference ability.


2021 ◽  
Author(s):  
Fabian Salazar-Caceres ◽  
Maximiliano Bueno-Lopez ◽  
Santiago Sanchez-Acevedo

2021 ◽  
Vol 1802 (2) ◽  
pp. 022035
Author(s):  
Chunhua Yang ◽  
Wanjun Zhang ◽  
Feng Zhang ◽  
Xiaoping Gou ◽  
Jingxuan Zhang ◽  
...  

PAMM ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Dimitrios S. Karachalios ◽  
Ion Victor Gosea ◽  
Athanasios C. Antoulas

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