Multi-objective Optimization Method For Repeat Ground-track Orbit Design Considering the Orbit Injection Error
Keywords:Repeat ground-track orbit design, Orbit injection error, Revisiting accuracy, Fuel consumption, Multi-objective optimization
AbstractConsidering the adverse effects of orbit injection error, a novel repeat ground-track orbit redesign approach is proposed to reduce the fuel consumption caused by the orbital maneuvering from the injection orbit to the nominal orbit. By introducing the performance indexes of revisiting accuracy and orbit injection maneuvering fuel consumption, the problem of repeat ground track orbit redesign considering the orbit injection error is transformed into a multi-objective optimization problem, which can be solved by multi-objective genetic algorithm. Finally, the numerical simulations show that the redesigned repeat ground-track orbits not only can meet the requirements of revisiting ground targets with high accuracy, but also can reduce the required fuel consumption significantly
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