中文摘要：

研究了一类具有死区饱和输入的不确定时滞混沌系统的跟踪问题.基于滑模控制原理,提出了一种自适应控制的新方案.该方法不仅克服了已有结果的设计缺陷,还取消了死区斜率已知和死区对称的假设,并从理论上分析证明了跟踪误差渐近收敛到零.最后,Duffing-Holme系统的仿真结果表明了该方案的有效性.

英文摘要：

　The chaos tracking control problem is studied for a class of uncertain time-delay chaotic systems.Based on the principle of sliding mode control（SMC）,a novel adaptive design scheme is proposed.The approach not only overcomes the drawback reported in the literature,but also removes the assumptions that the dead-zone is symmetric and the slopes are known.By theoretical analysis,it is shown that tracking error asymptotically converges to zero.Finally,simulation results of Duffing-Holmes chaotic system demonstrate the effectiveness of the proposed approach.