During last decades Global Navigation Satellite Systems (GNSS) have increasingly become a fundamental tool for high accuracy positioning purposes. For this reason, it is crucial to guarantee a certain high quality of service (QoS). This QoS may be degraded by the presence of spurious undesirable signals coming from jammers that could degrade partially (or totally) the bandwidth of the desired GNSS signal. Basically, two kinds of Radio Frequency Interferences (RFI) can disturb a GNSS signal. Each one has its own characteristic spectral feature and a classification based on that is described as following: • Continuous wave interferences (CWI): a perturbation of a relative small part of the spectrum and can be mitigated by means of a notch filter. • Short pulsed interferences: with an instantaneous bandwidth that usually covers the entire GNSS band and can be partially removed by means of a blanking filter. Two interference detection and mitigation algorithms will be evaluated in order to implement a new Signal conditioner block into GNSS-SDR. These algorithms will be coded in C++

Organization

Student

Antonio Ramos de Torres

Mentors

  • Luis Esteve-Elfau
  • Javier Arribas
  • Monica Navarro
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2017