Low-orbit satellite constellation survivability optimization method based on link establishment probability

The invention discloses a link establishment probability-based low-orbit satellite constellation survivability optimization method, and belongs to the technical field of wireless communication. According to the method, for the problems of network performance reduction and network paralysis caused by node or link failure in a low earth orbit satellite network, a topological structure of each time slot is modeled by adopting time slices, and a link building probability matrix is deduced to represent dynamic topology; the node survivability is defined through the importance balance degree and the node anti-attack capability, and the link survivability is defined through the redundancy and the link anti-attack capability; and establishing a survivability optimization model of the satellite constellation, and designing a tabu genetic algorithm based on a reverse learning strategy to optimize the survivability of the low-orbit satellite constellation. According to the method, the link establishment probability matr