Improved Numerical Solution of Mixed H(sub 2)/H(infinity) Optimization with Applications.

Abstract

This study improved the numerical optimization technique used to compute mixed H2/H infinity controllers. The run time to generate the full curve of an H2/H infinity design was reduced by a factor of almost 200 for a specific example. This was accomplished by improving gradient calculations, upgrading the H infinity norm calculation to capture multiple peaks in the singular value plot and using routines that minimized processing time. The optimization routine used was the MATLAB CONSTR' Sequential Quadratic Programming (SQP) routine. This SQP routine was compared to a FORTRAN SQP numerical optimizer, IMSL/DNCONG. The method was applied to an F-16 SISO example and a missile MIMO example. The mixed H2/H infinity controller for both these examples are compared to previous controller designs created using the LQG/LTR technique.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA289315

Entities

People

  • Linda D. Smith

Organizations

  • Air Force Institute of Technology

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  • Energy and Power Technologies
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  • Accuracy
  • Air Force
  • Algorithms
  • Closed Loop Systems
  • Computational Fluid Dynamics
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  • Equations
  • Frequency
  • Frequency Bands
  • Mathematical Programming
  • Multiple Input Multiple Output
  • Optimization
  • Quadratic Programming
  • Reliability

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