TY - GEN
T1 - Optimal sliding-window detector for disruptions in random sequences
AU - Chang, Wei
AU - Rorres, Chris
AU - Kam, Moshe
PY - 1992
Y1 - 1992
N2 - The detection of instants of change in random process properties, a problem with a variety of applications in technical and medical diagnostics, control, and image processing, is considered. The focus in this study is on the detection of a jump change in the mean and/or variance of an observed random sequence. The problem is to detect the jump as quickly as possible after its occurrence while avoiding an excessive false alarm rate (i.e. declaring a change before it occurs). For this purpose, the Neyman-Pearson criterion for the design of a disruption detector is used. An optimal design formula is derived for limiting cases. Using a Neyman-Pearson criterion, the designer can determine an optimal window size and an optimal detector sensitivity.
AB - The detection of instants of change in random process properties, a problem with a variety of applications in technical and medical diagnostics, control, and image processing, is considered. The focus in this study is on the detection of a jump change in the mean and/or variance of an observed random sequence. The problem is to detect the jump as quickly as possible after its occurrence while avoiding an excessive false alarm rate (i.e. declaring a change before it occurs). For this purpose, the Neyman-Pearson criterion for the design of a disruption detector is used. An optimal design formula is derived for limiting cases. Using a Neyman-Pearson criterion, the designer can determine an optimal window size and an optimal detector sensitivity.
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U2 - 10.23919/acc.1992.4792503
DO - 10.23919/acc.1992.4792503
M3 - Conference contribution
AN - SCOPUS:0026960932
SN - 0780302109
SN - 9780780302105
T3 - Proceedings of the American Control Conference
SP - 2121
EP - 2122
BT - Proceedings of the American Control Conference
PB - Publ by American Automatic Control Council
T2 - Proceedings of the 1992 American Control Conference
Y2 - 24 June 1992 through 26 June 1992
ER -