Introduction of ICG IDM and technology analysis of GNSS interference detection and localization

Global Navigation Satellite System (GNSS) is widely used in all walks of life. However, GNSS signals are very weak and the civilian signal format is known, making it extremely susceptible to various intentional and unintentional electromagnetic interferences, which poses a serious threat to GNSS applications. GNSS interference has attracted widespread international attention, the International Committee on Global Satellite Navigation Systems (ICG) has established a special GNSS interference detection and mitigation (IDM) working group to develop IDM technologies and exchange ideas on IDM system construction. This paper introduces the situation of ICG IDM, and analyzes the research progress of GNSS interference detection and localization technology and IDM systems. It provides important technical reference and research support for deepening the theoretical and technical research on GNSS interference monitoring and ensuring the safety of satellite navigation.