Fault detection and isolation in multiple MEMS-IMUs configurations

Stephane Guerrier, Adrian Waegli, Jan Skaloud, Maria Pia Victoria-Feser

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

This research presents methods for detecting and isolating faults in multiple micro-electro-mechanical system inertial measurement unit (MEMS-IMU) configurations. First, geometric configurations with $n$ sensor triads are investigated. It is proved that the relative orientation between sensor triads is irrelevant to system optimality in the absence of failures. Then, the impact of sensor failure or decreased performance is investigated. Three fault detection and isolation (FDI) approaches (i.e., the parity space method, Mahalanobis distance method and its direct robustification) are reviewed theoretically and in the context of experiments using reference signals. It is shown that in the presence of multiple outliers the best performing detection algorithm is the robust version of the Mahalanobis distance.

Original languageEnglish (US)
Article number6237576
Pages (from-to)2015-2031
Number of pages17
JournalIEEE Transactions on Aerospace and Electronic Systems
Volume48
Issue number3
DOIs
StatePublished - 2012

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering

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