Satellite-to-ground communication decision system based on knowledge graph

Abstract

The knowledge graph relies on the powerful knowledge aggregation ability to bring new space for progress to the satellite-to-ground communication decision-making system, and it performs better in accuracy, debugging, scalability and decoupling. Then, based on the user-based collaborative filtering algorithm, a collaborative filtering algorithm fused with path loss is proposed. Based on the path loss formula for the free propagation of radio waves, the similarity factor is derived, and the similarity calculation formula more in line with satellite-to-ground communication is obtained. Through the simulation results, it can be seen that the improved algorithm has improved accuracy and recall rate, resulting in more satisfactory recommendation results.