Analyzing the Effect of Interference in GNSS Scintillation Monitoring Rodrigo Romero Politecnico di Torino 11th European Space.

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Presentation transcript:

Analyzing the Effect of Interference in GNSS Scintillation Monitoring Rodrigo Romero Politecnico di Torino 11th European Space Weather Week. Liege, BELGIUM. November

Interference in GNSS receivers  The reception of GNSS signals can be affected by Radio Frequency Interference (RFI).  The presence of unintentional interference is recognized to be one of the growing threats to GNSS performance. Potential Interference sources in GPS and Galileo bands

V Interference Signal ADCBPF LNA Front-End ACQUISITIONTRACKING Receiver ProcessingOutputs E,L,P correlations. Integrated Doppler. C/N0 estimation. GNSS Satellites Ionosphere irregularities GNSS Antenna Interference Scenario

Interference Effects How much the ionospheric scintillation indices are affected, if at all, may depend on several characteristics like the type of interference signal, its power and/or bandwidth.

What if the interference is mitigated? What if the RFI is detected and triggers a mitigation technique? Mitigation techniques may also suppress useful signal while trying to eliminate the interference. New distortions in the scintillation indices may appear!!

Join us in the poster session Thanks!