Abstract:Aiming at the phasing maneuver programming of rendezvous and docking mission between target spacecraft and chaser spacecraft, an optimization method of target spacecraft phasing maneuver strategy considering variable constraints for orbital rendezvous mission is proposed. First, based on modeling nonlinear programming problems and analyzing specific constraints, the variable constraints that are generated during orbit prediction are transformed into fixed constraints. Second, the hybrid optimization algorithm combining DC and SQP incorporates two layers of enhanced process to eliminate unsolvable solutions and reduce algorithm redundancy. Finally, the method was implemented and simulated using the maneuver planning sequence script tool in ATK. Results demonstrate that the proposed approach not only ensures computational accuracy but also enhances efficiency and significantly reduces the solution time for phasing maneuver planning of target spacecraft.