TY - JOUR
T1 - Calibration and estimation of redundant signals
AU - Ray, Asok
AU - Phoha, Shashi
N1 - Funding Information:
The research work reported in this paper has been supported in part by: Office of Naval Research under Grant No. N00014-97-1-0786; and National Academy of Sciences under a Research Fellowship award to the first author.
PY - 2002
Y1 - 2002
N2 - This paper presents an adaptive filter for real-time calibration of redundant signals consisting of sensor data and/or analytically derived measurements. The measurement noise covariance matrix is adjusted as a function of the a posteriori probabilities of failure of the individual signals. An estimate of the measured variable is obtained as a weighted average of the calibrated signals. The weighting matrix is recursively updated in real time instead of being fixed a priori. The filter software is presently hosted in a Pentium platform and is portable to other commercial platforms. The filter can be used to enhance the Instrumentation & Control System Software in large-scale dynamical systems.
AB - This paper presents an adaptive filter for real-time calibration of redundant signals consisting of sensor data and/or analytically derived measurements. The measurement noise covariance matrix is adjusted as a function of the a posteriori probabilities of failure of the individual signals. An estimate of the measured variable is obtained as a weighted average of the calibrated signals. The weighting matrix is recursively updated in real time instead of being fixed a priori. The filter software is presently hosted in a Pentium platform and is portable to other commercial platforms. The filter can be used to enhance the Instrumentation & Control System Software in large-scale dynamical systems.
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U2 - 10.1109/acc.2002.1023223
DO - 10.1109/acc.2002.1023223
M3 - Conference article
AN - SCOPUS:0036055628
SN - 0743-1619
VL - 2
SP - 1437
EP - 1442
JO - Proceedings of the American Control Conference
JF - Proceedings of the American Control Conference
T2 - 2002 American Control Conference
Y2 - 8 May 2002 through 10 May 2002
ER -