Accession Number : ADA198275


Title :   Display Systems Dynamics Requirements for Flying Qualities


Descriptive Note : Final rept. Oct 1986-Dec 1987


Corporate Author : HONEYWELL SYSTEMS AND RESEARCH CENTER MINNEAPOLIS MN


Personal Author(s) : Boettcher, Kevin ; Schmidt, David K. ; Case, Lori


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA198275


Report Date : 09 MAY 1988


Pagination or Media Count : 184


Abstract : This report summarizes research performed to develop a methodology for deciding requirements for display dynamics that ensure good flying qualities. To this end, a model-based approach was pursued that uses the optimal control model (OCM) of human operator behavior. One aspect of the investigation was to further establish the utility of the OCM in this context by correlating model-based quantities with flying qualities data from existing data bases. Another aspect was to consider how various factors at the pilot/display interface map into usual OCM perceptual parameters. A third element of the investigation was to examine the specific case of an STOL vehicle in an approach and landing configuration, with an explicity modeled processing delay in the HUD. This case study showed the negative impact of the delay and demonstrated how the introduction of additional display dynamics can compensate for its effect. Finally, a methodology for deciding display dynamics requirements has been suggested that is based on multivariable control theory, specifically the structured singular value. The methodology provides a means for assessing robustness of system performance and pilot workload to variations in pilot behavior and with respect to variable aircraft dynamics. It also incorporates a synthesis procedure that selects display dynamics so that a balance is achieved between optimal performance and adequate robustness. From such synthesis results, display dynamics requirements can be abstracted. A detailed example that illustrates this approach is provided. Keywords: Man machine systems, Flight control systems, Head-up displays.


Descriptors :   *PILOTS , *HEAD UP DISPLAYS , *MAN MACHINE SYSTEMS , AIRCRAFT , FLIGHT CONTROL SYSTEMS , HUMANS , SYNTHESIS , DYNAMICS , INTERFACES , PARAMETERS , PROCESSING , MULTIVARIATE ANALYSIS , DISPLAY SYSTEMS , VARIABLES , QUALITY , CONFIGURATIONS , DELAY , BEHAVIOR , CONTROL THEORY , WORKLOAD , OPERATORS(PERSONNEL) , PERCEPTION , AIRCRAFT LANDINGS , SHORT TAKEOFF AIRCRAFT , OPTIMIZATION , APPROACH , DATA BASES , REQUIREMENTS


Subject Categories : FLIGHT CONTROL AND INSTRUMENTATION
      HUMAN FACTORS ENGINEERING & MAN MACHINE SYSTEM


Distribution Statement : APPROVED FOR PUBLIC RELEASE