Blog Editor’s Note: The European Space Agency (ESA) is worried about GNSS jamming and spoofing. So it established the Navigation Innovation Support Programme (NAVISP) to foster innovations in satellite navigation and terrestrial forms of PNT. 

We were priviledged to receive a copy of a presentation about one of the recently concluded studies and permission to share it with you. The study was titled Advanced Radio Frequency Interference Detection, Alerting and Analysis System (ARFIDAAS).

Some of the interesting points in the presentation:

  • Interference with signals at just one GBAS antenna is enough to disrupt the approach procedure for aircraft
  • One jammer was observed to disrupt signals at two antennas that were a kilometer apart
  • GPS disurption is a growing problem for aviation
  • High integrity GNSS receivers are especailly vulnerable
  • Spoofing multiple GNSS constellations is more than feasible
  • Meaconing, or recording and replaying authentic GNSS signals, can defeat many safeguards

Here are the conclusions from the last slide:

1) RFI is very real
2) Once there’s an economic motivation for someone to spoof GNSS, they will
• I see you ordered a nice stereo from amazon – I see I ordered a nice stereo from amazon.
3) It’s wishful thinking that there are simple fixes
• You have to make sure that your system security level makes the attack just not worth it
4) You must be very careful when interpreting claims from manufacturers
• They are probably not lying to you, but they are absolutely not including all the disclaimers

You can view the entire presentation by clicking the image: