A Link Simulation Technique for LEO Satellite Constellations in the Electromagnetic Environment

Link simulation can provide strong support for the verification and evaluation of new techniques for low earth orbit (LEO) satellite constellations. Aiming at the feature that communication links of LEO satellite constellations are susceptible to electromagnetic environment interference (EEI), we propose a link simulation architecture named LEOLS-Stack. To improve usability, scalability and fidelity, the proposed architecture integrates three key techniques: (1) models construction of natural electromagnetic interference, interstellar electromagnetic interference and artificial electromagnetic interference, which can quickly construct scenarios containing different electromagnetic environments; (2) automatic extraction of interference links, which can automatically divide interference links and calculate link performance data; (3) link simulation combining performance data with interference signals, which can identify the characteristics of interference signals and simulate interference links. Experiments show that constellations in different electromagnetic environments can be quickly built by the interference construction and simulation process. At the same time, the fidelity of link simulation under electromagnetic interference is improved.