Abstract The article presents the problem of attitude calculations in the case of faulty correction signals. The issue is of vital importance especially for small general aviation aircraft and small Unmanned Aircraft Vehicle (UAV) systems, where there is no hardware redundancy (multiplied Attitude and Heading Reference System: AHRS). First, a typical algorithm using complete measurement information and complementary filtering used in AHRS is described. An alternative solution for complementary filtering is the use of Kalman filtering. The attitude is calculated from roll rates measured by rate gyros in the aircraft body frame. As correction signals, pitch and roll gravity angles are used. The angles between the aircraft body frame x (for the pitch angle) and y (for the roll angle) axes and local gravity axis are treated as gravity angles. Gravity angles are usually measured by clinometers or calculated from accelerations. Next, the problem of missing correction signals is discussed. Attitude calculation without correction causes significant errors depending on time (drift). Therefore, for correction estimates of pitch and bank angle were proposed. It is shown that the use of estimated data in the case of missing correction signals does not cause significant attitude errors. For simulation analysis, flight testing data were used.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Aircraft attitude calculation with the use of aerodynamic flight data as correction signals


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2013-10-25


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Measuring Aircraft Nonlinearity Across Aerodynamic Attitude Flight Envelope

    Abdallah, Ayman M. / Newman, Brett A. / Omran, Ashraf M. | AIAA | 2013



    Measuring Aircraft Nonlinearity Across Aerodynamic Attitude Flight Envelope (AIAA 2013-4985)

    Abdallah, A.M. / Newman, B.A. / Omran, A.M. et al. | British Library Conference Proceedings | 2013


    Low-speed safety aircraft capable of controlling flight attitude by aerodynamic force

    GU YIMING | Europäisches Patentamt | 2015

    Freier Zugriff