Research on Anti-jamming Strategy of Satellite Navigation System in Complex Electromagnetic Environment

Satellite navigation is a basic strategic resource. In the context of navigation war, satellite navigation is facing a severe threat. Therefore, how to improve the security of satellite navigation in a complex electromagnetic environment is an urgent problem to be solved. This paper first expounds the composition and basic principles of the satellite navigation system, and then analyzes the real threat of the satellite navigation system. Finally, to improve the security of satellite navigation, we need to start from the whole system of environment perception, screening and isolation, detection and identification, efficiency evaluation, Strategy planning, countermeasures, countermeasures and return feedback. This paper has some theoretical value for improving the overall effectiveness of satellite navigation.