Systems and methods for use in aiding an inertial navigation system during a GNSS signal outage. An ultrasonic transceiver is positioned adjacent a wheel of a vehicle and reflections of the emitted signal are used to determine changes of direction and/or to determine a distance traveled by the vehicle. For changes of direction, the transceiver is adjacent to a front wheel such that left or right turns cause the wheel to interrupt a signal path from the transceiver to a reflector. For distance estimates, the transceiver is adjacent a back wheel of the vehicle. The ultrasonic signal is reflected off of solid sections of the wheel or passes through void sections of the wheel. The measurements obtained can be processed in various ways to estimate number of rotations of the wheel and, accordingly, the distance traveled by the vehicle.


    Access

    Download


    Export, share and cite



    Title :

    SENSOR PLACEMENT AND METHODS FOR AIDING NAVIGATION DURING GNSS SIGNAL OUTAGE


    Contributors:

    Publication date :

    2020-07-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



    Sensor placement and methods for aiding navigation during GNSS signal outage

    MOUSSA MOHAMED / MOUSSA ADEL / EL-SHEIMY NASER | European Patent Office | 2022

    Free access

    Ultrasonic Wheel Based Aiding for Land Vehicle Navigation in GNSS Denied Environment

    Moussa, M. / Moussa, A. / El-Sheimy, N. | British Library Conference Proceedings | 2019


    SYSTEMS AND METHODS FOR AIDING GNSS-UNAVAILABLE AIRCRAFT OPERATIONS

    LESTER EDWARD ANDREW / BORGYOS SZABOLCS A | European Patent Office | 2022

    Free access