Station-keeping for a translunar communication station View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1974-09

AUTHORS

John V. Breakwell, Ahmed A. Kamel, Martin J. Ratner

ABSTRACT

A translunar communication station is to be kept close to a nominal unstable periodic ‘Halo’ orbit, visible at all times from Earth. The analytically computed nominal orbit is not perfect, requiring an average control acceleration of about 10−6g's for tight control. An adjustable quadratic combination of position deviation and control acceleration is minimized to provide an (adjustable) control law with period feedback gains and a periodic bias. The average control acceleration can be reduced to less than 10−8g's with an error settling time of less than 21/2 months. The resulting limiting motion provides, in turn, an improved nominal, permitting the same low control cost with much tighter control, corresponding to settling times of the order of one day. More... »

PAGES

357-373

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01586864

DOI

http://dx.doi.org/10.1007/bf01586864

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1044403598


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