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Jamming detection in GNSS receivers: Performance evaluation of field trials
Swedish Defence Research Agency, Department of Robust Telecommunications.
Swedish Defence Research Agency, Department of Robust Telecommunications.
Swedish Defence Research Agency, Department of Robust Telecommunications.
Swedish Defence Research Agency, Department of Robust Telecommunications.
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2013 (Engelska)Ingår i: Proceedings of the 26th international technical meeting of the Satellite Division of The Institute of Navigation, ION GNSS+ 2013, Sept. 16 - 20, 2013, Nashville Convention Cener, Nashville, Tennessee, Manassas, VA: Institute of Navigation, The , 2013, Vol. 3, s. 2542-2551Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In this work, we evaluate the detection performance of a number of commercial interference detectors and, in addition, of a detector that uses the automatic gain control (AGC) levels as test statistic. The AGC detector has been implemented on a Novatel GPS receiver and on a Universal Software Radio Peripheral (USRP). The evaluations are based on actual measurements of GPS signals and different types of jamming signals, which have been performed at the Vidsel test range in northern Sweden. The AGC detector was shown to work well for all types of jamming signals, in particular the one implemented on the USRP. The Chronos CTL-3500 was also shown to perform quite well for all kinds of signals, although not as good as the USRP with an AGC detector. Quite surprisingly, the J-alert was only able to detect the wideband (20 MHz) signal but not the narrow band (<2MHz) signals. By contrast, the jamming indicator on the Ublox 6 receiver was only able to detect a slowly varying modulated CW (MCW) signal, but not the signals with larger bandwidth (2 and 20 MHz). We confirmed that C/N0-based detectors could work well in a static scenario, but are not suitable in a dynamic scenario, since they cannot distinguish between decreased GPS signal strength (e.g. indoors) and an increased interference level.

Ort, förlag, år, upplaga, sidor
Manassas, VA: Institute of Navigation, The , 2013. Vol. 3, s. 2542-2551
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Annan elektroteknik och elektronik
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Industriell elektronik
Identifikatorer
URN: urn:nbn:se:ltu:diva-37003Lokalt ID: adfb5e20-7630-45a2-b776-c8f5fb361ba9OAI: oai:DiVA.org:ltu-37003DiVA, id: diva2:1010502
Konferens
International technical meeting of the Satellite Division of the Institute of Navigation : 16/09/2013 - 20/09/2013
Anmärkning
Godkänd; 2014; 20140509 (andbra)Tillgänglig från: 2016-10-03 Skapad: 2016-10-03 Senast uppdaterad: 2017-11-25Bibliografiskt granskad

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