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The coexistence of Lyapunov exponential spectrum and bifurcation model proves the coexistence of attractors. [Formula: see text] and SE complexity algorithms are used to compare and analyze the corresponding complexity characteristics of the system, and the most complex integer-order system is obtained. In addition, the circuit to switch between different chaotic attractors is novel. In particular, more complex parameters are selected for the fractional-order chaotic system through the analysis of parameter complexity, and the rich dynamics of the system are analyzed. Experimental results based on Field-Programmable Gate Array (FPGA) platform verify the feasibility of the system. Finally, the most complex integer-order system is compared with its corresponding fractional-order system in image encryption, so that the fractional-order system has a better application prospect. <\/jats:p>","DOI":"10.1142\/s0218126622501705","type":"journal-article","created":{"date-parts":[[2022,3,25]],"date-time":"2022-03-25T04:54:16Z","timestamp":1648184056000},"source":"Crossref","is-referenced-by-count":2,"title":["The Comparison, Analysis and Circuit Implementation of the Chaotic Systems"],"prefix":"10.1142","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6886-0440","authenticated-orcid":false,"given":"Shaohui","family":"Yan","sequence":"first","affiliation":[{"name":"Northwest Normal University, College of Physics and Electronic Engineering, Peili, Lanzhou 730070, Gansu, P.\u00a0R.\u00a0China"},{"name":"Center of Gansu Province for Intelligent Information Technology and Application, Gansu, P. R. 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