A method to level an inertial reference system of a helicopter with reference to the local vertical frame is provided. The method includes powering up the helicopter; outputting sensor data from at least one gyroscope and at least one accelerometer to a mode-selecting processor; executing a fast Fourier transform algorithm on the sensor data at the mode-selecting processor; andselecting one of a plurality of operation modes of the helicopter as a current-operation mode based on the execution of the fast Fourier transformalgorithm.


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    Title :

    HELICOPTER MOTION IDENTIFICATION DURING INERTIAL REFERENCE SYSTEM LEVELING


    Additional title:

    HUBSCHRAUBERBEWEGUNGSERKENNUNG WÄHREND DER TRÄGHEITSREFERENZSYSTEMNIVELLIERUNG
    IDENTIFICATION DE MOUVEMENT D'HÉLICOPTÈRE LORS DE LA MISE À NIVEAU D'UN SYSTÈME DE RÉFÉRENCE INERTIEL


    Contributors:

    Publication date :

    2018-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



    Helicopter motion detection during inertial reference system leveling

    GANGULI SUBHABRATA | European Patent Office | 2018

    Free access

    HELICOPTER MOTION DETECTION DURING INERTIAL REFERENCE SYSTEM LEVELING

    GANGULI SUBHABRATA | European Patent Office | 2016

    Free access