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On orbital allotments for geostationary satellites

Autore: David J A Gonsalvez; Charles H Reilly; Clark A Mount-Campbell; Ohio State University. ElectroScience Laboratory.; Lewis Research Center.
Editore: Columbus, Ohio : The Ohio State University, ElectroScience Laboratory ; Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, [1986]
Serie: NASA contractor report, NASA CR-181017.
Edizione/Formato:   eBook : Document : National government publication : EnglishVedi tutte le edizioni e i formati
Pubblicazione:Dissertation Abstracts International, 47-10B.
Banca dati:WorldCat
Sommario:
Satellite system synthesis consists of allocating orbit locations, frequency channels, and polarizations to satellites that transmit signals to service areas. The problem of assigning orbit locations to geostationary satellites is considered in this manuscript. Position assignments are to be made so as not to exceed specified acceptable interference levels that are stated in terms of conservative minimum required
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Dettagli

Informazioni aggiuntive sul formato: Gonsalvez, David J.A. (David Joseph Antony), 1956-
On orbital allotments for geostationary satellites.
1 v.
(OCoLC)275278694
Tipo materiale: Document, Government publication, National government publication, Risorsa internet
Tipo documento: Internet Resource, Computer File
Tutti gli autori / Collaboratori: David J A Gonsalvez; Charles H Reilly; Clark A Mount-Campbell; Ohio State University. ElectroScience Laboratory.; Lewis Research Center.
Numero OCLC: 275404210
Note: Title from title screen (viewed Nov. 20, 2008).
Descrizione: viii, 143 pages : digital, PDF file.
Dettagli: Mode of access: Internet from the NTRS web site. Address as of 11/20/08: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19870013267%5F1987013267.pdf ; current access is available via PURL.
Titolo della serie: NASA contractor report, NASA CR-181017.
Responsabilità: David J.A. Gonsalvez, Charles H. Reilly, Clark A. Mount-Campbell.

Abstract:

Satellite system synthesis consists of allocating orbit locations, frequency channels, and polarizations to satellites that transmit signals to service areas. The problem of assigning orbit locations to geostationary satellites is considered in this manuscript. Position assignments are to be made so as not to exceed specified acceptable interference levels that are stated in terms of conservative minimum required orbital separations between pairs of satellites. The objective function is the minimization of the total deviation of assigned orbit locations from corresponding specified desired locations. Four solution methods are proposed--mixed integer programming, Benders' decomposition, linear programming with restricted basis entry, and a new switching heuristic. The switching algorithm combines an interchange heuristic and the simplex method for linear programming. Experimental results on seven test problems show that the switching heuristic is superior to the other methods in terms of solution quality, as measured by the objective function, and computation time.

Variations of the satellite location problem are also examined. The problem variations considered are the addition of feasible arcs for satellites, alternate objective functions, and the use of less conservative, location-dependent, minimum required orbital separations. Experiments with these variations are performed on the seven test problems and one large "real-world" problem using the switching heuristic. It is demonstrated that the use of location-dependent satellite separations requires only minor modification to the implementation of the switching heuristic. Substantially more extensive changes would be necessary to apply any of the other three solution methods to this variation in the satellite location problem.

Further applications of and extensions to the switching heuristic are suggested.

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