Analysis and implementation of fractional-order chaotic system with standard components

• Autor(a) principal: Yao, Juan
• Data de Publicação: 2020
• Outros Autores: Wang, Kunpeng, Huang, Pengfei, Chen, Liping, Machado, J. A. Tenreiro
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.22/19002
• topic: Fractional-order; Chaotic system; Sparse optimization; Circuit implementation; Standard electronic components

This paper is devoted to the problem of uncertainty in fractional-order Chaotic systems implemented by means of standard electronic components. The fractional order element (FOE) is typically substituted by one complex impedance network containing a huge number of discrete resistors and capacitors. In order to balance the complexity and accuracy of the circuit, a sparse optimization based parameter selection method is proposed. The random error and the uncertainty of system implementation are analyzed through numerical simulations. The effectiveness of the method is verified by numerical and circuit simulations, tested experimentally with electronic circuit implementations. The simulations and experiments show that the proposed method reduces the order of circuit systems and finds a minimum number for the combination of commercially available standard components.