1. Gnss blind interference detection based on fourth-order autocumulants.
- Author
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Nunes, Fernando D. and Sousa, Fernando M.G.
- Subjects
- *
GLOBAL Positioning System , *ELECTRIC interference , *CUMULANTS , *RANDOM noise theory , *SIGNAL processing - Abstract
GNSS signals affected by additive channel noise are approximately Gaussian, but often the presence of interference may change that distribution.We propose a blind detection method based on the Giannakis-Tsatsanis Gaussianity test to evaluate the presence of narrowband and wideband non-Gaussian interference. This method, resorting to the sample fourth-order autocumulants, is compared to other Gaussianity tests. The asymptotic covariance matrix of the estimated autocumulant vector is analytically determined, thus reducing the complexity of the proposed technique. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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