A spline approach to state reconstruction for optimal active vibration control of flexible systems
A spline approach to state reconstruction for optimal active vibration control of flexible systems
复制标题
DOI：
10.1109/cca.1995.555873
复制
发表时间：
1995-09
期刊：
影响因子：
--
通讯作者：
G. Ambrosino;G. Celentano;R. Setola
中科院分区：
文献类型：
--
作者：
G. Ambrosino;G. Celentano;R. Setola
本文提出了一种柔性系统状态变量“瞬时”重构的新方法。重构器基于样条形状函数的使用，通过考虑约束和边界条件来插值可用的测量值。与通常的动态观测器不同，这种技术不需要使用系统的副本，也不需要使用任何关于输入的信息，因此即使在持续干扰和不确定参数存在的情况下，它也能很好地工作。光滑插值的样条形状特性在高频模式上引入了“空间滤波”现象，从而增加了控制方案对溢出的鲁棒性。
In this paper a new technique for "instantaneous" reconstruction of the state variables of a flexible system is proposed. The reconstructor is based on the use of spline shape functions to interpolate available measurements by taking into account both constraints and boundary conditions. Unlike the usual dynamic observers, this technique does not require the use of a copy of the system neither any information about the inputs hence it is able to work well even in presence of persistent disturbances and uncertain parameters. The spline shape property of smoothest interpolation introduces a "spatial filtering" phenomenon on the high-frequency modes which increases the robustness of the control scheme against spillover.