Interference Detection and Localisation

What is it about?

GPS has become ubiquitous in daily life, to an extent that the position, and often more importantly, the time delivered by GPS has become embedded in an increasing number of critical systems. However, given their low received power levels, GPS signals are very susceptible to interference from either intentional or unintentional sources. With the modern world becoming ever more reliant on GPS and other Global Navigation Satellite Systems (GNSS), GNSS has itself become a critical infrastructure and hence alleviating its vulnerability to interference has become of paramount importance.

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Why is it important?

The proposed approach enables us to lower the power level at which the radio frequency interference can be detected and localised. This results in increased sensitivity and system coverage area and the ability to detect onset of interference when the source is far away from the sensor nodes. Preventative action can therefore be taken before it can affect system operation.