This paper discusses theoretical issues that are relevant to Helmet-Mounted Display (HMD) attitude direction indicator (ADI) design. An ADI shows the relationship between the aircraft wings and the horizon and pilots use it to determine aircraft attitude (pitch and roll). The ADI is used for maintaining an aircraft attitude, capturing a precise attitude and recovering from an unusual attitude. An attitude indicator is an essential instrument because it provides pilots with orientation information that they do not normally have in instrument flight conditions. Recent work suggests that humans orient themselves within a fixed world-reference frame. We will discuss the relationship between the reference frames used by the human orientation system, the reference frames implemented in existing ADIs, and the reference frames available in a helmet-mounted display. A head tracked HMD system allows a system designer to implement symbology in many reference frames including the head, aircraft, and world reference frames. Traditional head down attitude symbology may not be appropriate for HMD use, and it may conflict with the reference frame used by human orientation systems. Based on the author's review of ADIs and frames of reference, research topics are discussed that examine the role of HMD ADI symbology.


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    Titel :

    Theoretical issues relevant to helmet-mounted display attitude symbology


    Beteiligte:
    Armstrong, Joseph (Autor:in) / Jennings, Sion A. (Autor:in) / Craig, Greg (Autor:in)

    Kongress:

    Helmet- and Head-Mounted Displays V ; 2000 ; Orlando,FL,USA


    Erschienen in:

    Erscheinungsdatum :

    23.06.2000





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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