Title :
Consistency monitoring of Adaptive Controllers using Bayesian linear regression
Author :
Szukalski, Robert ; Muhlegg, Maximilian ; Johnson, Eric N.
Author_Institution :
Inst. of Flight Syst. Dynamics, Tech. Univ. Munchen, Munich, Germany
Abstract :
A method based on Bayesian linear regression for output monitoring of an adaptive controller is presented. As a basis, a feedback linearized system is augmented by a Model Reference Adaptive Controller. The application of Bayesian linear regression with online recorded data allows the prediction of the adaptive control output and the detection of off-nominal behavior. Additionally, the presented algorithm explicitly computes the probability of the observation error lying within a predefined error interval. The concept is shown in numerical simulation of an aircraft subject to wingrock dynamics.
Keywords :
Bayes methods; feedback; linearisation techniques; model reference adaptive control systems; predictive control; regression analysis; Bayesian linear regression; adaptive control output prediction; aircraft; consistency monitoring; error interval; feedback linearized system; model reference adaptive controller; numerical simulation; observation error; off-nominal behavior detection; output monitoring; probability; wingrock dynamics; Adaptation models; Adaptive control; Bayes methods; Linear regression; Monitoring; Uncertainty;
Conference_Titel :
American Control Conference (ACC), 2015
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4799-8685-9
DOI :
10.1109/ACC.2015.7170731