Reference stations for (satellite or terrestrial) navigation are often showing performance reduction due to multipath effects, caused by reflecting objects in their vicinity (buildings, vegetation, big antennas at spaceports, etc.). A possible solution to this problem is to use absorbers in the vicinity of the reference station antenna, to selectively suppress signal reception (and reflections) from nearby objects. This article describes the design, measurement, and preliminary test of a metamaterial-based absorber for this purpose, based on the combination of split cross ring resonator and cave cross resonator: the absorber has been characterized both electromagnetically as well as through field tests in the vicinity of a global navigation satellite systems reference antenna, showing a suppression of more than 50% of the strong multipath-due pseudorange errors.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Spatial Filtering of Multipath at GNSS Reference Stations Through Metamaterial-Based Absorbers




    Publication date :

    2023-12-01


    Size :

    3298528 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    DNN-Based Approach to Mitigate Multipath Errors of Differential GNSS Reference Stations

    Min, Dongchan / Kim, Minchan / Lee, Jinsil et al. | IEEE | 2022

    Free access

    Digital Twin-Enabled Characterization of GNSS Multipath in Challenging Reference Stations Using a Dual-Polarized Probe

    Ernest Ofosu Addo / Wahid Elmarissi / Stefano Caizzone | DOAJ | 2024

    Free access

    CARRIER-PHASE MULTIPATH CALIBRATION OF GPS REFERENCE STATIONS

    Wanninger, L. / May, M. | British Library Online Contents | 2001


    Mitigation of Multipath in DGPS Ground Reference Stations

    Braasch, M. S. / Van Graas, F. / Institute of Navigation | British Library Conference Proceedings | 1992


    CARRIER-PHASE MULTIPATH CALIBRATION OF GPS REFERENCE STATIONS

    Wanninger, Lambert | Online Contents | 2001