.... 26 04 2007 01 05 2007 aerospace engines fault diagnosis maintenance engineering gas turbines remaining life assessment in-flight fault detection trend monitoring on-board engine model Kalman filter Early detection of faults is an important aspect in the health...

...Takahisa Kobayashi; Donald L. Simon In this paper, a diagnostic system based on a uniquely structured Kalman filter is developed for its application to in-flight fault detection of aircraft engine sensors. The Kalman filter is a hybrid of a nonlinear on-board engine model (OBEM) and piecewise...