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Sensors 2018, 18(12), 4483;

Design, Implementation and Validation of a GNSS Measurement Exclusion and Weighting Function with a Dual Polarized Antenna

Department of Telecommunications and Systems Engineering, IEEC-CERES, Universitat Autònoma de Barcelona (UAB), Barcelona 08193, Spain
Septentrio, Leuven 3001, Belgium
Fraunhofer IIS, 91058 Erlangen, Germany
Author to whom correspondence should be addressed.
This paper is an extended version of “GNSS Measurement Exclusion and Weighting with a Dual Polarized Antenna: The FANTASTIC project” published in the Proceedings of the 2018 8th International Conference on Localization and GNSS (ICL-GNSS), Guimaraes, Portugal, 26–28 June 2018.
Received: 15 October 2018 / Revised: 7 December 2018 / Accepted: 14 December 2018 / Published: 18 December 2018
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Global Navigation Satellite Systems (GNSSs) have become a ubiquitous tool for our modern society to carry out vital tasks such as transportation, civil engineering or precision agriculture. This breath has reached the realm of safety-critical applications such as time management of critical infrastructures or autonomous vehicles, in which GNSS is an essential tool nowadays. Unfortunately, current GNSS performance is not enough to fulfill the requirements of these professional and critical applications. For this reason, the FANTASTIC project was launched to boost the adoption of these applications. The project was funded by the European GNSS agency (GSA) in order to enhance the robustness and accuracy of GNSS in harsh environments. This paper presents the part related to the development of a weighting and exclusion function with a dual circularly polarized antenna. The idea is to reduce the effects of multipath by weighting and/or excluding those measurements affected by multipath. The observables and other metrics obtained from a dual polarized antenna will be exploited to define an exclusion threshold and to provide the weights. Real-world experiments will show the improvement in the positioning solution, using all available constellations, obtained with the developed technique. View Full-Text
Keywords: polarization; multipath mitigation; range error; modeling polarization; multipath mitigation; range error; modeling

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Egea-Roca, D.; Tripiana-Caballero, A.; López-Salcedo, J.A.; Seco-Granados, G.; De Wilde, W.; Bougard, B.; Sleewaegen, J.-M.; Popugaev, A. Design, Implementation and Validation of a GNSS Measurement Exclusion and Weighting Function with a Dual Polarized Antenna. Sensors 2018, 18, 4483.

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