The Engineer: Could Defense Sector Help Avert GPS Disaster, February 2012

“Ships colliding at sea, stock markets crashing, transport networks in chaos: these are some of the nightmare scenarios that researchers studying GPS-jamming techniques this week warned we could be facing if suitable countermeasures aren’t produced. The newspapers gave substantial coverage on Wednesday to a conference at the National Physical Laboratory (NPL) in west London, which highlighted the dangers society is facing as we become increasingly dependent on global navigation satellite systems (GNSS) like America’s GPS and the forthcoming European Galileo.

The problem is that GNSS satellite transmissions, which are used not just for navigation but also to provide time stamps for transactions at the stock market and to alert trains when to stop at specific stations, can easily be jammed or falsified (spoofed) with fake signals.”

Continue reading The Engineer article, which features an interview with Dr. Humphreys.