Exploiting the Sensitivity of Dual-Frequency Smartphones and GNSS Geodetic Receivers for Jammer Localization

Smartphones now dominate the Global Navigation Satellite System (GNSS) devices capable of collecting raw data. However, they also offer valuable research opportunities in intentional jamming, which has become a serious threat to GNSS. have potential locate jammers, but their robustness and sensitivity range need be investigated first. In this study, response smartphones with dual-frequency, multi-constellation reception capability, namely, Xiaomi Mi8, 11T, Samsung Galaxy S20, Huawei P40, various single- multi-frequency jammers is investigated. The two-day jamming experiments were conducted remote area minimal impact on users, using these two Leica GS18 GS15 geodetic receivers, placed statically at side road line, approximately 10 m apart. A vehicle installed passed them several times constant speed. one scenario, person carrying jammer was constantly tracked tacheometer determine exact distance receivers for each time stamp. aim was, first, effects smartphones’ positioning capabilities compare terms speed quality repositioning professional receivers. Second, method developed position interference source by varying signal loss threshold recovery smartphone decaying carrier-to-noise ratio (CNR). results indicate that GNSS observations from an advantage over localizing because do not lose near are characterized sudden drops CNR.