一种新的未知输入观测器设计方法

New design of unknown input observers

基于线性系统结构的分解原理,提出一种新的含未知输入的观测器设计方法,利用矩阵分解技术,将带有未知输入的动态系统分解为彼此相互联系的两个系统,它们分别仅由已知输入所作用。给出了设计算法,该算法简洁、适用,通过简单的代数运算即可实现含未知输入观测器的设计,仿真结果验证了所提方法的可行性。

Based on the principle of structure decomposition of linear systems, a new and effective design method of unknown inputs observer （UIO） is proposed, and a feasible algorithm is presented. This approach is so concise and applicable that we can only use a simple algebraic operation to realize the design of UIO. Finally, the simulation result shows that the new method is practical and efficient.