Accession Number : ADA256444


Title :   Multiple Model Adaptive Estimation Applied to the ViSTA F-16 with Actuator and Sensor Failures


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Menke, Timothy E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256444.pdf


Report Date : 01 Jun 1992


Pagination or Media Count : 221


Abstract : A Multiple Model Adaptive Estimation (MMAE) algorithm is applied to the Variable Stability In-flight Simulator Test Aircraft (VISTA) F-16 at a low dynamic pressure flight condition (0.4 Mach at 20000 ft). A complete F-16 flight control system is modeled containing the longitudinal and lateral-directional axes. Single and dual actuator and sensor failures are simulated including: complete actuator failures, partial actuator failures, complete sensor failures, increased sensor noise, sensor biases, dual complete actuator failures, dual complete sensor failures, and combinations of actuator and sensor failures. Failure scenarios are examined in both maneuvering and straight and level flight conditions. Single scalar residual monitoring techniques are evaluated with suggestions for improved performance. A hierarchical moving bank structure is utilized for multiple failure scenarios. Simultaneous dual failures are included within the study. White Gaussian noise is included to simulate the effects of atmospheric disturbances, and white Gaussian noise is added to the measurements to simulate the effects of sensor noise. Kalman Filtering, Multiple Model Adaptive Estimation, MMAE, Failure detection and isolation, Bayesian, MMAC, multiple Model Adaptive Control.


Descriptors :   *ADAPTIVE CONTROL SYSTEMS , *FLIGHT CONTROL SYSTEMS , TEST AND EVALUATION , ALGORITHMS , SIMULATORS , SCENARIOS , DETECTION , MONITORING , LIGHT , PRESSURE , RESIDUALS , FLIGHT , VARIABLES , ATMOSPHERIC DISTURBANCES , KALMAN FILTERING , GAUSSIAN NOISE , ISOLATION , FAILURE , DIRECTIONAL , FILTRATION , DYNAMIC PRESSURE , LEVEL FLIGHT , FLIGHT SIMULATORS , NOISE , ACTUATORS , AXES , STRUCTURES , MODELS , AIRCRAFT , FIGHTER AIRCRAFT , MEASUREMENT , STABILITY , CONTROL SYSTEMS


Subject Categories : Attack and Fighter Aircraft
      Flight Control and Instrumentation


Distribution Statement : APPROVED FOR PUBLIC RELEASE