TY - JOUR
T1 - Fault detection in dynamic systems via decision fusion
AU - Cheng, Qi
AU - Varshney, Pramod K.
AU - Michels, James H.
AU - Belcastro, Celeste M.
N1 - Funding Information:
This work was supported in part by NASA-Langley under Order NNL04A127P.
PY - 2008/1
Y1 - 2008/1
N2 - Due to the growing demands for system reliability and availability of large amounts of data, efficient fault detection techniques for dynamic systems are desired. In this paper, we consider fault detection in dynamic systems monitored by multiple sensors. Normal and faulty behaviors can be modeled as two hypotheses. Due to communication constraints, it is assumed that sensors can only send binary data to the fusion center. Under the assumption of independent and identically distributed (IID) observations, we propose a distributed fault detection algorithm, including local detector design and decision fusion rule design, based on state estimation via particle filtering. Illustrative examples are presented to demonstrate the effectiveness of our approach.
AB - Due to the growing demands for system reliability and availability of large amounts of data, efficient fault detection techniques for dynamic systems are desired. In this paper, we consider fault detection in dynamic systems monitored by multiple sensors. Normal and faulty behaviors can be modeled as two hypotheses. Due to communication constraints, it is assumed that sensors can only send binary data to the fusion center. Under the assumption of independent and identically distributed (IID) observations, we propose a distributed fault detection algorithm, including local detector design and decision fusion rule design, based on state estimation via particle filtering. Illustrative examples are presented to demonstrate the effectiveness of our approach.
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U2 - 10.1109/TAES.2008.4517001
DO - 10.1109/TAES.2008.4517001
M3 - Article
AN - SCOPUS:44649122095
SN - 0018-9251
VL - 44
SP - 227
EP - 242
JO - IEEE Transactions on Aerospace and Electronic Systems
JF - IEEE Transactions on Aerospace and Electronic Systems
IS - 1
ER -