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Authors
Hao Ye; Rui He; Heng Liu; Guizeng Wang

Identifier
10.3182/20060329-3-AU-2901.00101

Index Terms
fault detection,networks,delay,decoupling,robustness

Abstract
A new approach for Fault Detection (FD) of Networked Control Systems (NCSs) based on Parity Relation (PR) and Principal Component Analysis (PCA) is proposed in this paper. The method can realize a good decoupling from unknown and random network-induced delay, and further ensure the robustness to traditional unknown inputs under an optimization sense. The approach is compared with the traditional PR based FD method for systems without network-induced delay and the existing PR based method for FD of NCSs.

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