Geometric methods for unknown-state, unknown-input reconstruction in discrete-time nonminimum-phase systems with feedthrough terms
Geometric methods for unknown-state, unknown-input reconstruction in discrete-time nonminimum-phase systems with feedthrough terms
复制标题
具有馈通项的离散时间非最小相位系统中未知状态、未知输入重构的几何方法
DOI：
10.1109/cdc.2010.5718013
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
E. Zattoni
中科院分区：
文献类型：
--
作者：
G. Marro;D. Bernstein;E. Zattoni
在具有不变零点的系统中，未知状态、未知输入的重构本质上受到以下事实的限制：对于任何不变零点，至少存在一个初始状态，S. T。当不变零点的模式被适当地注入到系统中时，输出保持不变地等于零。然而，这个问题最近引起了相当大的兴趣，主要是由于它与故障诊断和容错问题的连接。本文讨论了具有馈通项的离散非最小相位线性系统的一般初始状态和一般有界输入重构系统的综合问题。所描述的程序是在几何方法内开发的。
Unknown-state, unknown-input reconstruction in systems with invariant zeros is intrinsically limited by the fact that, for any invariant zero, at least one initial state exists, s.t. when the mode of the invariant zero is suitably injected into the system, the output remains identically equal to zero. Nonetheless, the problem has recently attracted considerable interest, mainly due to its connections with fault diagnosis and fault tolerant issues. This paper discusses the synthesis of a system capable of reconstructing the generic initial state and the generic bounded input in discrete-time nonminimum-phase linear systems with feedthrough terms. The procedure described is developed within the geometric approach.