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Parallel estimation and control architectures for deep-space formation flying spacecraft

Show simple item record Hadaegh, Fred Y. Smith, Roy S. 2006-10-26T22:18:03Z 2006-10-26T22:18:03Z 2006-07-24
dc.identifier.citation World Automation Congress, Budapest, Hungary, July 24, 2006. en
dc.identifier.clearanceno 06-1508
dc.description.abstract The formation flying of precisely controlled spacecraft in deep space can be used to implement optical instruments capable of imaging planets in other solar systems. The distance of the formation from Earth necessitates a significant level of autonomy and each spacecraft must base its actions on its estimates of the location and velocity of the other spacecraft. Precise coordination and control is the key requirement in such missions and the flow of information between spacecraft must be carefully designed. Doing this in an efficient and optimal manner requires novel techniques for the design of the on-board estimators. The use of standard Kalman filter-based designs can lead to unanticipated dynamics—which we refer to as disagreement dynamics—in the estimators’ errors. We show how communication amongst the spacecraft can be designed in order to control all of the dynamics within the formation. We present several results relating the topology of the communication network to the resulting closed-loop control dynamics of the formation. The consequences for the design of the control, communication and coordination are discussed. en
dc.description.sponsorship NAS/JPL en
dc.format.extent 194678 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006. en
dc.subject formation flying en
dc.subject distibuted estimation en
dc.subject distributed control en
dc.title Parallel estimation and control architectures for deep-space formation flying spacecraft en
dc.type Preprint en

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