Optimization of the Low Earth Orbit Constellation Deployment Strategy Considering the Launching Schedule Constraints

This article focuses on the research of optimization methods for constellation launch deployment strategies considering the constraints of mission interval time at the launch site. Firstly, a dynamic modeling of the constellation deployment process is conducted, and the relationship between the deployment window and the phase difference of the orbit insertion point, as well as the cost of phase adjustment after orbit insertion, are derived. Then, the combination of constellation deployment position sequence is taken as a parameter, together with the sequence of satellite deployment intervals, as optimization variables, which simplifies a high-dimensional search problem within a wide range of dates to a finite-dimensional integer programming problem. Genetic algorithms are introduced to optimize the launch deployment strategy. Through simulation verification, the optimization method proposed in this article has high search efficiency and optimal results.