A system to provide navigation solutions for vehicle landing guidance comprises onboard aiding sensors, an IMU, a radar altimeter, a map database, and a navigation system including a navigation filter that outputs estimated kinematic state statistics for the vehicle. An onboard processor inputs horizontal and vertical position statistics from the navigation filter into the map database, and computes an estimated ground/object height, ground/object velocity, ground/object acceleration, and error statistics thereof, based on terrain and object map data. The processer includes a radar altimeter inertial vertical loop (RIVL) filter that determines relative vertical acceleration based on a difference between vehicle vertical acceleration and ground/obj ect vertical acceleration; determines relative vertical velocity based on a difference between vehicle vertical velocity and ground/object vertical velocity; performs consistency checks on the relative vertical acceleration and relative vertical velocity; and outputs estimated vehicle vertical position and vertical velocity statistics for compensation of the navigation filter outputs.


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    Titel :

    RADAR ALTIMETER INERTIAL VERTICAL LOOP


    Weitere Titelangaben:

    VERTIKAL-TRÄGHEITSSCHLEIFE FÜR RADARHÖHENMESSER
    BOUCLE VERTICALE INERTIELLE D'ALTIMÈTRE RADAR


    Beteiligte:
    BAGESHWAR VIBHOR L (Autor:in) / KANA ZDENEK (Autor:in) / SOTAK MILOS (Autor:in)

    Erscheinungsdatum :

    02.08.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



    Strapdown inertial/celestial/radar altimeter integrated navigation

    Gao, Ziqian / Wang, Haiyong / Wang, Yonghai et al. | British Library Online Contents | 2017


    SATURN RADAR ALTIMETER

    Duggan, O. T. | NTRS | 1963


    SATURN RADAR ALTIMETER

    Dugan, O. T. | NTRS | 1963



    Ultra-wideband radar altimeter

    PESIK JOSEPH T / ELL TODD ANTHONY | Europäisches Patentamt | 2019

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