Cascade discrete memristive maps for enhancing chaos  

作　　者：Fang Yuan Cheng-Jun Bai Yu-Xia Li 袁方;柏承君;李玉霞(College of Electrical Engineering and Automation,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]College of Electrical Engineering and Automation,Shandong University of Science and Technology,Qingdao 266590,China

出　　处：《Chinese Physics B》2021年第12期81-87,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.61801271,61973200,and 91848206);the Natural Science Foundation of Shandong Province,China(Grant No.ZR2019BF007);the Qingdao Science and Technology Plan Project(Grant No.19-6-2-9-cg);the Elite Project of Shandong University of Science and Technology;the Taishan Scholar Project of Shandong Province of China;the Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents。

摘　　要：Continuous-time memristor(CM)has been widely used to generate chaotic oscillations.However,discrete memristor(DM)has not been received adequate attention.Motivated by the cascade structure in electronic circuits,this paper introduces a method to cascade discrete memristive maps for generating chaos and hyperchaos.For a discrete-memristor seed map,it can be self-cascaded many times to get more parameters and complex structures,but with larger chaotic areas and Lyapunov exponents.Comparisons of dynamic characteristics between the seed map and cascading maps are explored.Meanwhile,numerical simulation results are verified by the hardware implementation.

关 键 词：CHAOS discrete memristor cascade chaotic system BIFURCATION 

分 类 号：TN60[电子电信—电路与系统] O415.5[理学—理论物理]