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- Sensitivity of GNSS blind interference detection algorithm based on fourth-order autocumulantsPublication . Sousa, Fernando; Nunes, FernandoGNSS signals affected by additive channel noise are approximately Gaussian but often the presence of interference may change that distribution. We analyze the sensitivity of a proposed blind detection method based on the Giannakis-Tsatsanis Gaussianity test to evaluate the presence of narrowband and wideband non-Gaussian interference. Robustness of the proposed method to the blind-spot effect that occurs in pulsed interference signals is also discussed.
- Performance evaluation in AltBOC receivers affected by interferencePublication . Nunes, Fernando; Nunes, Rui F. D.; Sousa, FernandoThe paper analyzes the joint performance of the PLL and DLL blocks that constitute the conventional receiver for Galileo AltBOC(15,10) signals, in the presence of narrow band (sinusoidal) and wideband (periodic chirp) interference. Full-band and sub-band processing are considered. The simulation results are compared with the expected behavior determined by the computation of the spectral separation coefficient (SSC).