Eigenbeamforming for Interference Mitigation in GNSS Receivers

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Executive Summary

This paper presents a novel beamforming approach for interference mitigation in Global Navigation Satellite Systems (GNSS) receivers. The proposed algorithm is based on a recently developed beamformer but adapted to GNSS particularities, mainly the extremely low power of the received signal (well below the noise floor) and the interest only in the line-of-sight component, as opposite to communication systems where multipath can be exploited to increase the signal-to-noise ratio. This new beamformer only requires estimations of the noise power and the power and spatial signature of the signal of interest.

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