Ultimate boundedness control of linear systems with band-bounded nonlinear actuators and additive measurement noise

For linear systems driven by band-bounded nonlinear actuators, a set of linear matrix inequality (LMI) based sufficient conditions are derived for finding state feedback controllers which assure ultimate boundedness of state trajectories. Besides actuator nonlinearity, it is assumed that additive noise exists when state variables are measured for feedback. The purpose is to minimize the ultimate boundedness region while tolerating noise of the largest magnitude. When a state feedback controller is determined for a given system by solving the LMI conditions or by any other means, a less conservative LMI condition is given for further examination of the resultant ultimate boundedness region and tolerable noise magnitude.     

THE BOUNDEDNESS OF BILINEAR SINGULAR INTEGRAL OPERATORS ON SIERPINSKI GASKETS

In the paper we give the boundedness estimate of bilinear singular integral operators on Sierpinski gasket inspired from[1].     

双通道单脉冲跟踪快速校相改进算法

针对目前已有的双通道单脉冲跟踪快速校相算法的局限性,提出了相应的改进算法,并对改进算法的进行了性能分析。     

纳米LiNi0．5Mn0．5O2中锂离子扩散的尺寸效应研究

采用电势阶跃法分析了纳米LiNi0．5Mn0．5O2电极中锂离子的表观扩散系数随材料XRD粒度的变化规律,表观扩散系数随粒度的增大先增加后减小。校正尺寸几何因素后得到了LiNi0．5Mn0．5O2中锂离子的本征扩散系数随XRD粒度的变化规律,本征扩散系数随粒度的增大而增大。     

平面自治系统的有界性

研究一般平面自治系统的解的有界性．给出了两个有界性的充分条件和一个闭轨存在性的判据．     

加权Bloch空间到Qk空间的复合算子

讨论了加权Bloch空间(小加权Bloch空间)和Q_K空间的复合C_(?)的有界性,并给出了一些相应的结论.     

一类差分方程组的全局渐进稳定性

通过考查一类差分方程组,研究其正解的全局渐进稳定性,在参数满足不同的条件下,分别得出方程组的正解收敛于唯一正平衡点和方程组存在无界解的结论.