Beidou PNT (navigation, positioning, timing) services are widely used in transportation, transportation, power, finance and other pillar industries of the national economy. Low threshold of interference attack technology and low cost of attack equipment; Navigation signal is extremely weak, abnormal signal, intentional or unintentional interference will pose a threat to the security of PNT service; It is imperative to monitor interference in sensitive urban areas and key areas such as airports to ensure the safety and credibility of Beidou PNT services.
The navigation interference signal monitoring system independently developed by Hunan Weidoum can be used for fixed or mobile stations (installed on cars or aircraft) to monitor interference signals in or out of GNSS band in real time, to do quantitative interpretation of interference signals in the frequency domain and complete recording of interference information for subsequent analysis and playback, and to support the direction finding and positioning of interference sources.