用FIR滤波器-PPSV实现混沌和超混沌控制

USING FIR DIGITAL FILTER-PPSV TO CONTROL CHAOS AND HYPERCHAOS

利用数字FIR滤波器和正比于系统变量的脉冲反馈法（PPSV）的级联控制非线性连续系统中的混沌和超混沌。以实数Lorenz系统和复数洛仑兹－哈肯系统为例进行了数值研究。结果表明：FIR－PPSV级联控制法比仅用FIR滤波法或PPSV法更能有效地控制非线性连续系统中的混沌和超混沌，且抗噪性能比PPSV法有显著提高。

The cascade of FIR digital filter and PPSV is used to control chaos and hyperchaos in nonlinear continuous system. As examples, the Lorenz system and CLHE system are studied numerically. The results show that the method of cascade of FIR-PPSV is more effective than either the method of FIR digital filter or PPSV in controlling the chaos and hyperchaos in nonlinear continuous system. Compared with the method of PPSV, the resistance noise character of FIR-PPSV is improved obviously.