AN ENGINEERING ORIENTED RENDEZVOUS PHASING STRATEGY

摘要

Due to orbit perturbations, orbit determination errors, thrust vector errors, and the long duration to rendezvous, it is difficult to reach a precise rendezvous phasing terminal. The main goal of this paper is to provide an engineering oriented rendezvous phasing strategy with a good terminal precision. The strategy includes a preflight programming and several real-time programming. In the preflight programming, the variables are divided into three groups for getting initial guess solution, and the accurate solution can be obtained by employing sequential quadratic programming(SQP) algorithm. In the real-time programming, the terminal constraints are not dealt with penalty function, and the objective function combines the propellant with the deviations at the terminal using weighting factors matrix. The Monte-Carlo method is introduced to make an evaluation for the terminal precision. The result shows that the proposed strategy is effective and has a good performance in terminal precision under dispersions.