Description of an Interference Test Facility (ITF) to assess GNSS receivers performance in presence of interference

International Journal of Navigation and Observation

2014

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Radio frequency interference detection and mitigation are becoming of paramount importance due to the increasing number of services and applications based on the position obtained by means of Global Navigation Satellite Systems. A way to cope with such threats is the implementation in the receiver of advanced signal processing algorithm able to raise proper warning or improve the receiver performance. In this paper, we propose a method based on the Wavelet Transform able to split the useful signal from the interfering component in a transformed domain. The wavelet packet decomposition and proper statistical thresholds allow the algorithm to show very good performance in case of multiple pulse interference as well as in the case of narrowband interference, two scenarios in which traditional countermeasures might not be effective.

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Section: Resultsmentioning

confidence: 99%

Use of the Wavelet Transform for Interference Detection and Mitigation in Global Navigation Satellite Systems

International Journal of Navigation and Observation

2014

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“…The ITF is a hardware software platform capable of generating a wide range of realistic interference scenarios and it is mostly devoted to the testing of the GNSS hardware receiver performance under interference. More details on the different capabilities and the configurations of this tool can be found in [13].…”

Section: Experimental Simulation Of the Multiple Dme/tacan Interferenmentioning

confidence: 99%

Performance assessment of pulse blanking mitigation in presence of multiple Distance Measuring Equipment/Tactical Air Navigation interference on Global Navigation Satellite Systems signals

Samson

IET Radar, Sonar & Navigation

2014

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It is known that the Aeronautical Radio Navigation Systems sharing the Global Navigation Satellite Systems (GNSS) frequency band represent a threat to the satellite-based navigation services. Distance Measuring Equipment (DME) and Tactical Air Navigation (TACAN) systems broadcast strong pulsed ranging signals within the Global Positioning System L5 and Galileo E5a frequency bands where the aviation positioning aids services are allocated. This study provides an experimental assessment of the DME/TACAN interference effect on the GNSS receivers performance in scenarios where the presence of several transmitters in view generates radio-frequency interference hard to mitigate by means of the classical solutions. In detail, analysis in terms of the receiver performance will be presented by showing the effect of the non-ideal pulse blanking on the GNSS signal quality. The optimal setup of the mitigation process, investigated by means of a software simulation, is provided.

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Experimental assessment of Distance Measuring Equipment and Tactical Air Navigation interference on GPS L5 and Galileo E5a frequency bands

Samson

2012 6th ESA Workshop on Satellite Navigation Technologies (Navitec 2012) &Amp; European Workshop on GNSS Signals and Signal Pr

2012