| 离散线性系统部分可观测性测试配置 |
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| 引用本文： | 杨拥民,黎湘. 离散线性系统部分可观测性测试配置[J]. 国防科技大学学报, 2012, 34(1): 63-66 |
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| 作者姓名： | 杨拥民 黎湘 |
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| 作者单位： | 1. 国防科技大学装备综合保障技术重点实验室,湖南长沙,410073
2. 国防科技大学电子科学与工程学院,湖南长沙,410073 |
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| 基金项目： | 国家部委资助项目(513270302) |
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| 摘 要： | 不可观测系统的部分状态可观测性对于大系统故障检测具有十分重要的意义.研究了基于部分可观测性的不可观测离散线性系统测点优化配置问题,证明了采用有限次观测值构造一个矩阵,可以给出部分可观测性成立的充分必要条件,并进一步证明了部分可观测性的度量可以用一个矩阵的秩的特性来刻画.最后,给出了离散线性系统部分可观测性测试优化配置的度量指标.算例表明,提出的部分可观测性度量指标具有简单实用的特点.
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| 关 键 词： | 离散线性系统 部分可观测性 奇异值 测试优化配置 |
| 收稿时间： | 2011-09-09 |
Measurement optimization of linear discrete systems for partial observability |
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| YANG Yongmin and LI Xiang. Measurement optimization of linear discrete systems for partial observability[J]. Journal of National University of Defense Technology, 2012, 34(1): 63-66 |
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| Authors: | YANG Yongmin and LI Xiang |
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| Affiliation: | 1.Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha 410073,China; 2.College of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | Observability of a part of states(partial observability) of unobservable system is very important for fault detection of large systems.Measurement points optimization of unobservable linear discrete systems based on partial observability was studied.It was proved that a sufficient and necessary condition of the partial observability can be obtained by a matrix which is formed by limited observations of the system.Then the rank characteristic of a matrix was proved to be able to be applied to express how observable those partial states are.Finally,an index of this partial observability was presented for the measurement optimization. |
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| Keywords: | linear discrete system partial observability singular value measurement optimization |
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