Antenna Array Based GNSS Signal Acquisition for Interference Mitigation

Provided by: Institute of Electrical & Electronic Engineers
Topic: Mobility
Format: PDF
This paper addresses the signal acquisition problem using an array of antennas in the general framework of Global Navigation Satellite Systems (GNSS) receivers. The authors propose a statistical approach, using the Neyman-Pearson (NP) detection theory and the Generalized Likelihood Ratio Test (GLRT) to obtain a new detector which is able to mitigate temporally uncorrelated interferences even if the array is unstructured and moderately uncalibrated. The key statistical feature is the assumption of an arbitrary and unknown covariance noise matrix, which attempts to capture the statistical behavior of the interferences and other non-desirable signals, while exploiting the spatial dimension provided by antenna arrays.

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