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Time-window optimization for a constellation of earth observation satellite

Thesis (M.Com.(quantitative Management)) / Satellite Scheduling Problems (SSP) are NP-hard and constraint programming and
metaheuristics solution methods yield mixed results. This study investigates a new version of
the SSP, the Satellite Constellation Time-Window Optimization Problem (SCoTWOP),
involving commercial satellite constellations that provide frequent earth coverage.
The SCoTWOP is related to the dual of the Vehicle Routing Problem with Multiple Timewindows,
suggesting binary solution vectors representing an activation of time-windows.
This representation fitted well with the MatLabĀ® Genetic Algorithm and Direct Search
Toolbox subsequently used to experiment with genetic algorithms, tabu search, and simulated
annealing as SCoTWOP solution methods. The genetic algorithm was most successful and in
some instances activated all 250 imaging time-windows, a number that is typical for a
constellation of six satellites. / Quantitative Management

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:unisa/oai:uir.unisa.ac.za:10500/2706
Date02 1900
CreatorsOberholzer, Christiaan Vermaak
Source SetsSouth African National ETD Portal
LanguageEnglish
Detected LanguageEnglish
TypeThesis
Format1 online resource (170 leaves)

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