摘要
为提高混沌同步系统抗信道噪声和元件参数失配干扰的能力 ,研究具有线性误差方程的一类连续变量反馈同步系统中反馈系数的优化设计问题。推导出反馈系数优化设计的目标函数和约束条件 ,用 MATL AB软件对其进行优化设计。通过对蔡氏电路非线性反馈和线性反馈两种同步方案的仿真及实验表明 ,用该方法设计的混沌同步系统具有较强的抗干扰能力。
Theoptimaldesignoffeedbackcoefficientsis studied for a class of continuous variables feedbackchaoticsynchronizationsystems with linear error equations.The ability of the systems to resist interferencecausedbychannelnoiseandnon matching parameters is improved. The object function and bound conditions of optimal design for the feedback coefficients are derived and the optimal design iscompletedwithMATLABsoftware.Theresults of simulation and experiments for the nonlinear feedback and linear feedback synchronization approaches applied to Chua′s circuits show that the synchronous chaotic systems designed by this method have strong anti interference characteristics.
出处
《控制与决策》
EI
CSCD
北大核心
2002年第5期607-610,637,共5页
Control and Decision
基金
国家自然科学基金项目 (6 96 72 0 2 2 )
国家教委博士点基金项目 (970 5 6 116 )
关键词
混沌同步系统
反馈系数
优化设计
保密通信
chaotic synchronization
anti interference
optimal design
Chua′s circuit
