The problem of optimum low-thrust collision avoidance between two objects in circular orbits is investigated. The thrust vector of the maneuvered satellite, applied continuously for a given time span, is held constant in magnitude as a consequence of Pontryagin’s maximum principle while its orientation is controlled following the solution of an optimal control problem using the indirect method written in B-plane coordinates. In addition, a simple, fully analytical solution for a tangential maneuver is derived and compared with the controlled solution. Results show that the analytical solution is sufficiently accurate and adequate for a preliminary design of the maneuver. The influence of environmental perturbations is also addressed and shown to be negligible.
Low-Thrust Collision Avoidance in Circular Orbits
Journal of Guidance, Control, and Dynamics ; 44 , 5 ; 983-995
2021-05-01
Article (Journal)
Electronic Resource
English
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