Modern aviation safety increasingly depends on reliable GPS services, while signal degrading effects such as multipath and masking often occur during critical flight phases, such as takeoff and landing. In this regard, we propose multireceiver direct position estimation (MR-DPE), which operates a network of DPE receivers to enhance GPS accuracy under degraded signal conditions. A DPE receiver directly estimates navigation solutions in the position–velocity–time domain with a maximum-likelihood approach, bypassing the intermediate range measurements. Whereas prior works have shown the enhanced accuracy of DPE with weak signals, MR-DPE provides further improvement by leveraging the information redundancy and the geometric diversity provided by the network of receivers and antennas. We implemented MR-DPE using software-defined radio and tested it with simulated GPS signals to show improved GPS accuracy under degraded environments. We conducted comprehensive, full-scale flight experiments, a first for DPE-related works. A wide range of flight profiles was explored and analyzed, especially those prone to signal multipath and masking, thus validating the claimed benefits of MR-DPE in GPS accuracy.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    GPS Multireceiver Direct Position Estimation for Aerial Applications




    Erscheinungsdatum :

    2020-02-01


    Format / Umfang :

    4500143 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    GPS Multireceiver Joint Direct Time Estimation and Spoofer Localization

    Bhamidipati, Sriramya / Gao, Grace Xingxin | IEEE | 2019


    Multireceiver passive radar tracking

    Klein, M. / Millet, N. | IEEE | 2012


    GNSS Multireceiver Vector Tracking

    Yuting Ng, / Gao, Grace Xingxin | IEEE | 2017


    Multireceiver Passive Radar Tracking

    Klein, M | Online Contents | 2012


    Height Estimation for 3-D Automotive Scene Reconstruction Using 300-GHz Multireceiver Radar

    Phippen, Dominic / Daniel, Liam / Hoare, Edward et al. | IEEE | 2022