The GP-Probe DIN L1 has limited capabilities compared to the GP-Probe TGE2. Due to its single GNSS channel, it cannot classify interference as jamming or spoofing in real-time. It is also limited in detecting coherent spoofing attacks from the onset, only identifying anomalies resulting from such attacks.
In contrast, the GP-Probe TGE2 can classify interference as either jamming or spoofing. The DIN L1 model, however, can only detect the presence of interference and any anomalies in the GNSS signal.
In the image below, you can see an example of a spoofing attack detected by the GP-Probe DIN L1 in conjunction with GP-Cloud:
Supported Classification
Interference
Interference is detected by the built-in RF spectrum analyzer. The device measures Peak Power in dBm, and if the measured power crosses a user-defined threshold, the system flags an event with the status "Interference." This status has the highest priority. If a weak interference initially causes data anomalies and subsequently the power level crosses the Peak Power threshold, the entire incident is classified as "Interference."
Anomaly
The system is capable of detecting unusual behavior in GNSS signals that deviate from their normal patterns. Anomalies can be caused by spoofing or jamming with insufficient signal power. If the interference power is not sufficient to cross the Peak Power threshold but still causes GNSS signal anomalies, the system flags an event with the status "Anomaly."
Low Position Accuracy
When the accuracy of coordinates produced by the embedded receiver of the GP-Probe DIN L1 falls outside the predefined limits, this status is triggered.
