GNSS Antenna Array Calibration for Spatial and Polarization Domain Based Multipath Mitigation
This paper demonstrates an antenna manifold calibration method for a dual polarized antenna array and RF front-end for use in GNSS applications. The process described in this paper uses a two-step process to characterize the RF receiver front-end and the antenna array. A GNSS signal simulator is used to generate a reference signal for calibration of a multi-channel RF front-end. An anechoic chamber is used to characterize the phase and gain biases of the dual-polarized phased antenna array. These combined results can then be used to characterize and compensate for the biases of the RF receiving system in a live-sky operational environment for beamforming and direction of arrival GNSS applications.
2022 International Technical Meeting of The Institute of Navigation
Hahn, Eric, Gunawardena, Sanjeev, Bartone, Chris, "GNSS Antenna Array Calibration for Spatial and Polarization Domain Based Multipath Mitigation," Proceedings of the 2022 International Technical Meeting of The Institute of Navigation, Long Beach, California, January 2022, pp. 96-111. https://doi.org/10.33012/2022.18229