Research on Topology Partition Algorithm of Polar Orbit Satellite Network

At present, spatial routing technology is mainly divided into two types: The existing spatial routing technologies are mainly divided into two types: system-periodically-segmented routing technology based on centralized scheduling as well as coverage-area-segmented routing technology based on distributed scheduling. Among them, centralized routing technology is widely used, but there are many problems, such as the difficulty of topology partition and the high overhead of computing and storage. The polar satellite constellation has become a representative constellation design scheme in the existing satellite networking because of its flexible networking and convenient implementation. Based on the analysis of key conditions and parameters such as polar area, link angle and phase difference in orbit, a topology optimization model suitable for polar orbit satellite network is proposed, which effectively reduces the number of time slots generated in network and improves operation efficiency.