The Monitoring of Localize Ionospheric Scintillation and RF Interference by GNSS Network

Contemporary navigation, communications, and electronic warfare systems heavily depend on the uninterrupted accessibility of Global Positioning Satellite Systems (GNSS) or comparable systems for the purposes of location determination, navigation, and time synchronization (PNT). Irrespective of the deliberate or inadvertent nature of the purpose, the act of Global Navigation Satellite System (GNSS) jamming, also known as ja mming, has the potential to significantly impede or entirely interrupt applications that depend on Positioning, Navigation, and Timing (PNT). Therefore, the assurance of PNT functionality emerges as an essential imp erative. Due to the inherently weak power of normal GNSS signals, the operational integrity of these systems and the effective completion of their tasks might be compromised by the interference caused by low-cost G NSS jammers. In the present study, the phenomenon of localized scintillation structure, characterized by the disruption of radio signals due to abnormalities, is duly acknowledged. The presence of irregularities within the ionosphere can have an impact on the propagation of radio waves passing through it. In this study, a low-cost GNSS network is established in the Ta i w a n region utilizing Septentrio GNSS mosaic X5 modules. The purpose of this network is to monitor the quality of the GNSS signal and determine whether any interference originates from ionospheric abnormalities or the local RF environment.