This paper deals with the reliability and performance evaluation of two methods for FDI of on-board sensors and thrusters for attitude control of the Mars Express (MEX) orbiter spacecraft. The study makes use of a detailed non- linear simulation of the MEX, and the FDI performance is evaluated subject to disturbance signals, model uncertainty and measurement noise processes. The two methods are based on robust dynamic observers or filters, used as estimators, which generate the FDI residual signals. When organised into an estimator bank excellent fault isolation properties are achieved upon suitable design. Carefully selected performance criteria indices are used together with Monte Carlo robustness tuning and performance evaluation. These constitute the FDI design methodology, realising a reliability approach for real application of FDI in future spacecraft.

A MONTE CARLO ANALYSIS AND DESIGN FOR FDI OF A SATELLITE ATTITUDE CONTROL SYSTEM

SIMANI, Silvio;
2006

Abstract

This paper deals with the reliability and performance evaluation of two methods for FDI of on-board sensors and thrusters for attitude control of the Mars Express (MEX) orbiter spacecraft. The study makes use of a detailed non- linear simulation of the MEX, and the FDI performance is evaluated subject to disturbance signals, model uncertainty and measurement noise processes. The two methods are based on robust dynamic observers or filters, used as estimators, which generate the FDI residual signals. When organised into an estimator bank excellent fault isolation properties are achieved upon suitable design. Carefully selected performance criteria indices are used together with Monte Carlo robustness tuning and performance evaluation. These constitute the FDI design methodology, realising a reliability approach for real application of FDI in future spacecraft.
2006
9783902661142
Reliability analysis and evaluation; fault detection and isolation; sensor faults; satellite control application; Monte Carlo simulation.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1195703
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