Insight
Satellite navigation is increasingly jammed, spoofed and denied. A passive magnetic reference, which reads the Earth's own field and needs no external signal, adds a layer that does not depend on satellites.
Measuring weak magnetic fields as a full vector, at room temperature, is what nitrogen-vacancy centres in diamond do well.
Insight
Magnetic navigation has already flown. The next step is an instrument that tells the vehicle, at every instant, how wrong its position can be.
Insight
Jamming and spoofing of satellite positioning are part of everyday flight operations in several regions. The figures, with their sources, and what they mean for navigation.
Insight
Magnetometers flying today are corrected by compensation models fitted to each vehicle. We design our sensor to reject the platform's own field on board as well.