Self-contained GNSS-based Antenna Array Calibration

Antenna array processing techniques require calibration algorithms often relying on the availability of signal sources at known locations, a good knowledge of the array manifold or a reference antenna. An alternative is provided by GNSS signals that transmits the location of their sources as part of their navigation data. In this paper, the use of a projection methodology for the calibration of antenna arrays using GNSS signals is proposed. The developed algorithm is used for the evaluation of the calibration parameters using different antenna configurations and satellite combinations. The algorithm is validated using simulated and real data collected from antenna array with different structures and antenna spacing.