GPS Jamming Assessment Workshop

RTK losses due to GPS interference  C/N monitor

On 18 and 19 July 2017, FCS hosted a workshop of international experts on the subject of GPS jamming  for the first time. Recent results of flight trials and results of long term ground measurements were compared, and radiation patterns of various jammers shown. Discussions covered the extent of jamming acceptable for aviation, and the benefit of defining durations and levels of interferences before launching active counter-measures. Discussions followed on  improving detection of GPS jammers and preventive measures.

Subsequently, the current implementation status of GLONASS was presented. Discussions followed on the implications of combined GLONASS and GPS receivers in aircraft with respect to not only the improvement of position  determination,  but also reduced susceptibility to interferences.

The presentation of a report on the essential results of the workshop is planned for the forthcoming Flight Inspection Symposium (IFIS 2018).

Furthermore, a statistical evaluation of GPS interferences in the air space of FCS calibration flights is planned, using recorded data.

Thursday, 20 July, 2017