Volume 6, 2013Progress in Flight Dynamics, Guidance, Navigation, Control, Fault Detection, and Avionics
|Page(s)||443 - 452|
|Section||Fault detection and control|
|Published online||02 December 2013|
Reliable amplitude and frequency estimation for biased and noisy signals − Application to oscillatory failures detection
University of Bordeaux 1, IMS-lab, Automatic Control Group 351 Cours de la Libération, Talence 33405, France
Robust estimation of the amplitude, frequency and bias of unknown noisy sinusoidal signals is considered. It is only assumed that the measurements noise is bounded without any additional information such as stationarity, uncorrelation or type of distribution. The estimation problem is formulated as a Constraint Satisfaction Problem (CSP) where the amplitude, frequency and bias constitute the variables and a function relating them to the output is the constraint. Interval constraint propagation techniques are used to solve, in a reliable way, this problem. The proposed technique is applied to oscillatory failure case (OFC) detection in aircraft control surfaces. The results of simulation illustrate efficiency of the proposed technique.
© Owned by the authors, published by EDP Sciences, 2013
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