GNSS interference monitoring and characterisation station

Abstract

An interference monitoring station is presented which detects, characterises and logs interference events. The system operates autonomously and continuously over multiple global navigation satellite system (GNSS) bands. With a bandwidth of up to 80 MHz, input resolution of 8 bit an overall data rate of approximately 1.3 Gbit/s can be supported. The interference detection is carried out in real-time, while the interference characterisation is executed in post-processing. The characterisation is separated in temporal and signal contents, as this allows both continuous wave (CW) and pulsed signals to be analysed independently of their frequency dynamics. This approach of characterisation has also proven to allow a broader spectrum of interferences to be classified. Examples of real-world events are presented.