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Virtual structure based spacecraft formation control with
formation feedback
Ren, Wei | Beard, Randal
AIAA Guidance, Navigation, and Control Conference and Exhibit,
Monterey, CA; UNITED STATES; 5-8 Aug. 2002. 2002
Formation control for multiple vehicles has become an active
research area in recent years. Generally there are three
approaches to this problem, namely leader-following, behavioral,
and virtual structure approaches. In this paper, formation control
ideas for multiple spacecraft using virtual structure approach are
presented. If there is no formation feedback from spacecraft to
the virtual structure, the spacecraft will get out of formation
when the virtual structure moves too fast for the spacecraft to
track or the total system must sacrifice convergence speed in
order to keep the spacecraft in formation. The spacecraft may also
get out of formation when the system is affected by internal or
external disturbances. To overcome these drawbacks, a novel way of
introducing formation feedback from spacecraft to the virtual
structure is illustrated in detail. An application of these ideas
to multiple spacecraft interferometers in deep space is given.
(Author)
 Descriptors: VIRTUAL REALITY | FORMATION FLYING | SPACECRAFT CONTROL | FEEDBACK
CONTROL | CONTROL THEORY | INTERFEROMETERS | CONVERGENCE
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