网络系统的不确定自适应滑模控制

针对TCP网络的拥塞控制问题,采用滑模控制理论提出了一种新的主动队列管理算法。考虑到网络系统不确定性上界很难获得,根据改进的李亚普诺夫函数,提出了一种简单的自适应律以适应系统的不确定的上界,并根据此自适应律设计了一个滑模控制器。所设计的控制器既保证了滑动模态的存在和系统的渐进稳定性,又较好的抑制了系统不确定带来的影响。仿真结果表明该方法的有效性。

Uncertainty Adaption Sliding Mode Control for Network Systems

For the problem of congestion control in the Internet,a novel active queue management(AQM) algorithm is proposed based on the sliding mode control theory.Considering the upper bound of network system uncertainties may not be easily obtained,a simple adaption law is presented for the upper bound of system uncertainties based on lyapunov function and design a sliding mode controller according to that.An AQM controller is derived to not only ensure the existence of a sliding mode on the surface and asymptotic ...