47 ms·
If the GPS signals are coming from above and the jamming is coming from below wouldn't this be strongly resistant to such attacks assuming the receiver is shiel
by mikeiz404 2y ago
If the GPS signals are coming from above and the jamming is coming from below wouldn't this be strongly resistant to such attacks assuming the receiver is shielded from signals from below?
Edit: Perhaps it's not a good assumption that a near peer would only jam or spoof from below. If they have satellites above then they could interfere from above as well.
- mikeiz404 2y agoAlso found this: > Signals received from GNSS Satellites are usually very weak and are thus susceptible to deliberate or unintentional interference. It is very easy for an adversary to intentionally introduce RF interference into the GPS frequency bands, referred to as jamming, and deny the user position, navigation, and timing (PNT) data. Using CPRA antennas can help protect against this changing the antenna reception patterns to null out the jamming signals and direct the beams towards the satellites. https://www.everythingrf.com/community/what-are-controlled-reception-pattern-antennas https://www.everythingrf.com/community/what-are-controlled-r... And another article which gives an overview of how controlled reception pattern antennas work (CRPA): https://www.gpsworld.com/anti-jam-technology-demystifying-the-crpa/ https://www.gpsworld.com/anti-jam-technology-demystifying-th...