Flight Control Design Using Mixed H2/Microns Optimization.

Abstract

This thesis examines the use of the mixed H2/Microns optimal control synthesis method in the design of a flight control system for the lateral/directional axes of the F-16 Variable Stability In-Flight Simulator Test Aircraft (VISTA). The method is designed to minimize the H2 norm (two-norm) for a given value of microns. This should provide adequate noise and disturbance rejection while maintaining robustness against several types of uncertainties in the system. This thesis finds that, for this problem, the two-norm is not an accurate representation of the outputs of interest. When the two-norm is broken up into its constituent parts an appropriate solution can be found. This thesis also finds that it is possible to use an H2 controller which is destabilizing to the evaluation model as the starting point in the mixed H2/IL curve and still get an acceptable answer. A numerical approach was used, utilizing a recently improved computer algorithm.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA289288

Entities

People

  • Douglas D. Decker

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Algorithms
  • Closed Loop Systems
  • Control Systems
  • Control Systems Engineering
  • Engineering
  • Equations
  • Equations Of Motion
  • Flight Control Systems
  • Flight Simulators
  • Gaussian Noise
  • Measurement
  • Open Loop Systems
  • Riccati Equation
  • Simulations
  • Transfer Functions

Readers

  • Clinical Trial Research.
  • Computational Modeling and Simulation
  • Robotics and Automation.