School of Mechanical Electronics and Information Engineering, Jiangsu Vocational College of Finance and Economics, Huaian 223003, China.
Chaos. 2019 Jan;29(1):013140. doi: 10.1063/1.5085432.
Compared with integral calculus, the fractional differential operator can objectively reveal and describe the physical characteristics of the actual system. For fractional differential operator functions, sufficient conditions for stability of fractional nonlinear systems are given. By accurately adjusting the frequency of the analog input signal and observing and verifying the nonlinear dynamic characteristics of the new system, the simulation experiment of the fractional circuit with different fractional values is carried out, and the circuit simulation can visually observe the evolution of system variables. The research shows that the predictive correction method numerically simulates the fractional-order system, and the phase diagram of the chaotic attractor of the system is obtained. The simulation results show that the minimum order of chaos in the fractional hyperchaotic system is 2.8. The research shows that the simulation of the nonlinear system and its circuit implementation show the effectiveness of the circuit simulation method of the fractional-order chaotic system and the feasibility of circuit implementation.
与积分运算相比,分数阶微分算子可以客观地揭示和描述实际系统的物理特性。对于分数阶微分算子函数,给出了分数阶非线性系统稳定性的充分条件。通过准确调整模拟输入信号的频率,并观察和验证新系统的非线性动态特性,对不同分数值的分数电路进行了仿真实验,电路仿真可以直观地观察系统变量的演化。研究表明,预测校正方法对分数阶系统进行数值模拟,得到系统混沌吸引子的相图。仿真结果表明,分数超混沌系统的混沌最小阶数为 2.8。研究表明,非线性系统的仿真及其电路实现表明了分数阶混沌系统的电路仿真方法的有效性和电路实现的可行性。