摘要
针对Pyragas延时反馈控制方法和自适应延时反馈控制方法 ,研究反馈信号滞后对混沌控制效果的影响。以信号滞后时间τ0 作为分岔参数 ,得到控制系统状态变量对τ0 的分岔图 ,该图表明信号滞后对两种混沌控制方法的控制效果均有不同程度的影响。与Pyragas延时反馈控制方法相比 ,自适应延时反馈控制方法具有较强的鲁棒性。另外 ,该方法能够在较短的时间内将混沌系统稳定在期望的周期轨道上。
According to Pyragas's delayed self feedback control method and the adaptive delayed self feedback control method, influence of hysteretic feedback signal on chaos control was investigated. Taking hysteretic time τ 0 of feedback signal as a bifurcation parameter, the bifurcation diagram of state variable with respect to τ 0 was obtianed, which indicates that the hysteretic time τ 0 have different level influence on control results for tow control methods, respectively. Comparing with Pyragas's method, the adaptive delayed feedback method possesses stronger robusticity, in addition, the method can stabilize chaotic system onto desired periodic orbit in shorter time.
出处
《机械强度》
CAS
CSCD
北大核心
2004年第5期493-496,共4页
Journal of Mechanical Strength
基金
国家自然科学重大基金项目资助 (1 9990 51 0 )。~~
关键词
延时反馈控制
自适应控制
混沌控制
信号滞后
Delayed feedback control
Adaptive control
Chaos control
Signal hysteresis
