Characterizing the Carrier Phase Distortions for Different Interference Mitigation Approaches using an Antenna Array

Tobias Bamberg and Michael Meurer

Abstract:	The use of GNSS positioning in highly automated systems, like packet delivering using drones or self-driving cars, demands a reliable and accurate position estimation. At the same time the risk for interference, intentional or unintentional, increases. A promising countermeasure is to suppress the interference with spatial filters using an antenna array. However, these filters can induces a phase error to the carrier phase measurements, which are obligatory for high precision approaches like Precise Point Positioning (PPP). In this work the induced carrier phase error is studied for some common techniques like the minimum variance distortionless response (MVDR) or the Eigenbeamformer. The phase errors are studied for an ideal antenna array as well as for a measured antenna pattern. The MVDR does not introduce any errors in theory, but it needs some information about the array configuration and the incoming signals. Therefore a sensitivity analyses of the MVDR is conducted.
Published in:	Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019) September 16 - 20, 2019 Hyatt Regency Miami Miami, Florida
Pages:	3517 - 3527
Cite this article:	Bamberg, Tobias, Meurer, Michael, "Characterizing the Carrier Phase Distortions for Different Interference Mitigation Approaches using an Antenna Array," Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019), Miami, Florida, September 2019, pp. 3517-3527. https://doi.org/10.33012/2019.16933
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In