Distributed and cooperative estimation of formation flight of unmanned vehicles subject to faults and unreliable information

S. M. Azizi, K. Khorasani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, a novel framework for cooperative estimation of formation flight of unmanned vehicles subject to presence of actuator faults is proposed. This framework is developed based on the notion of sub-observers where within a group of sub-observers each sub-observer is estimating certain states that are conditioned on a given input, output, and state information. We model the overall estimation process by a weighted estimation (WE) digraph. By selecting an appropriate path in the weighted estimation digraph, an assigned supervisor can select and configure a set of sub-observers to successfully estimate all the system states. In presence of large disturbances, noise, and faults certain sub-observers may become invalid (or unreliable), and consequently the supervisor reconfigures the set of sub-observers by selecting a new path in the estimation digraph such that the impacts of these anomalies are confined to only the local estimators. This will prevent the propagation of the uncertainties on the estimation performance of the entire formation flight system. Simulations are conducted on a five satellite formation flight system in deep space where the results confirm the validity of our analytical work.

Original languageEnglish (US)
Title of host publication2012 American Control Conference, ACC 2012
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3303-3308
Number of pages6
ISBN (Print)9781457710957
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 American Control Conference, ACC 2012 - Montreal, QC, Canada
Duration: Jun 27 2012Jun 29 2012

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2012 American Control Conference, ACC 2012
CountryCanada
CityMontreal, QC
Period6/27/126/29/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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