Distances Between Successive Vehicle Position Measurements in the Decision Rule for an Intelligent GNSS Signal Spoofing Detection System Using a Single Antenna

The article presents the concept of a decision rule for the needs of an intelligent GNSS signal spoofing detection system using a single antenna. GNSS spoofing detection using a single antenna is essentially similar to GNSS spoofing detection using two antennas. The main difference is that position measurements made simultaneously at two different points in space are replaced by two successive position measurements spaced in time. It turns out that based on the course of the distance between successive measurements of the position of a vehicle moving at a known speed, it is possible to effectively design a decision rule for the needs of an intelligent GNSS signal spoofing detection system using a single antenna. This is because when determining the distance between successive measurements of the vehicle's position, a significant proportion of the measurement errors of the satellite positioning system are reduced. This significantly reduces the dead zone of GNSS spoofing detection using a single antenna. The proposed approach was positively verified in tests conducted in real conditions.