Study of RFI signals in protected GNSS bands generated by common electronic devices: Effects on GNSS-R measurements

摘要

RFI (Radio Frequency Interference) signals are a threat for GNSS-R (Global Navigation Satellite Systems — Reflectometry) due to the very low power of the navigation signals. Interference signals coming from computers or high-speed buses may affect GNSS-R measurements introducing a bias or even corrupting them completely. These RFI may be in-band or near-band and can desensitize GNSS and GNSS-R receivers. A number of techniques are currently under development to mitigate the effect of RFI signals.