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3D-map**-aided PPP-RTK aiming at deep urban canyons

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  1. Article

    Open Access

    Random forest-based multipath parameter estimation

    Multipath is recognized as one of the major error sources for GNSS urban navigation. This study proposes a random forest (RF)-based multipath parameter estimator that uses random forest regression for paramete...

    **n Qi, Bing Xu, Zhipeng Wang, Li-Ta Hsu in GPS Solutions (2024)

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  2. Article

    Open Access

    GNSS direct position estimation-inspired positioning with pseudorange correlogram for urban navigation

    Multipath (MP) reception has been among the main issues for accurate and reliable positioning in urban environments. It has been shown to introduce positioning errors of up to tens of meters for conventional t...

    Sergio Vicenzo, Bing Xu, Haosheng Xu, Li-Ta Hsu in GPS Solutions (2024)

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  3. Article

    Open Access

    Machine learning based LOS/NLOS classifier and robust estimator for GNSS shadow matching

    Global Navigation Satellites Systems (GNSS) is frequently used for positioning services in various applications, e.g., pedestrian and vehicular navigation. However, it is well-known that GNSS positioning perfo...

    Haosheng Xu, Antonio Angrisano, Salvatore Gaglione, Li-Ta Hsu in Satellite Navigation (2020)

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