Nonfeedback control of chen''''s chaotic system
陈氏混沌系统的非反馈控制

Nonfeedback chaos control of Chen's chaotic system is realized with nonresonant parametric drive. The control input is a periodic signal whose frequency is far higher than the system characteristic frequency. The feasibility of this scheme is proved by averaging method and Lyapunov method, and the condition of control parameter is obtained. Numerical researches show that the controlled system can reach stable state rapidly even when the control signal is noisy.