Linearized Impulsive Fixed-Time Fuel-Optimal Space rendezvous: A New Numerical Approach

Abstract : This paper focuses on the fixed-time minimum-fuel rendezvous between close elliptic orbits of an active spacecraft with a passive target spacecraft, assuming a linear impulsive setting and a Keplerian relative motion. Following earlier works developed in the 1960s, the original optimal control problem is transformed into a semi-infinite convex optimization problem using a relaxation scheme and duality theory in normed linear spaces. A new numerical convergent algorithm based on discretization methods is designed to solve this problem. Its solution is then used in a general simple procedure dedicated to the computation of the optimal velocity increments and optimal impulses locations. It is also shown that the semi-infinite convex programming has an analytical solution for the out-of-plane rendezvous problem. Different realistic numerical examples illustrate these results.
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Denis Arzelier, Florent Bréhard, Norbert Deak, Mioara Joldes, Christophe Louembet, et al.. Linearized Impulsive Fixed-Time Fuel-Optimal Space rendezvous: A New Numerical Approach. 20th IFAC Symposium on Automatic Control in Aerospace, Aug 2016, Sherbrooke, Canada. ⟨10.1016/j.ifacol.2016.09.064⟩. ⟨hal-01275427⟩

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