【作者】 禹思敏； 吕金虎；

【Author】 Yu Simin1,Lü Jinhu21.College of Automation,Guangdong University of Technology,Guangzhou 510090,P.R.China2.Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100080,P.R.China

【机构】 广东工业大学自动化学院； 中国科学院数学与系统科学研究院；

【摘要】 基于一个典型的三阶蔡氏电路,通过在其电感支路中串入一个由负电阻、电容、电感和电阻组成的π型子电路,本文构建出五阶、六阶和七阶蔡氏电路。基于数字化处理技术,通过对系统的连续时间状态方程进行离散化处理和变量比例变换,我们进一步用FPGA技术硬件实现高阶蔡氏电路中的混沌吸引子。本文以七阶蔡氏电路为例,提出了用FPGA技术产生混沌吸引子的一般设计原理并给出了其硬件实现结果。上述结果为复杂高阶电路系统的设计与实现提供了一条切实可行的途径。更多还原

【Abstract】 Based on a typical three order Chua’s circuit,we constructed the five,six and seven order Chua’s circuits by adding a PI-type subcircuit in its inductance subcircuit.The PI-type subcircuit consists of negative resistors,resistors,capacitances,and inductors.Moreover,based on the digital processing technology,we further physically realize the generating chaotic attractors by discreting the state equation of continuous time,ratio transformation of variable,and field programmable gate array(FPGA)approach.Furthermore,we propose a general design principle of FPGA technology for chaos generation.As an example,the seven order Chua’s circuit is detailedly analyzed and the experimental results are given.These results provide a practical route of the design and realization for the general complex high order circuit systems.更多还原