Sequential Conjugate Gradient-Restoration Algorithm for Optimal Control Problems with General Boundary Conditions.

Abstract

This paper considers the numerical solution of the problem of minimizing a functional subject to differential constraints and general boundary conditions. The approach taken is a sequence of two-phase cycles, composed of a conjugate gradient phase and a restoration phase. The conjugate gradient phase involves one iteration and is designed to decrease the value of the functional, while the constraints are satisfied to first order. During this iteration, the first variation of the functional is minimized, subject to the linearized constraints and to a quadratic constraint imposed on the variations of the control, the parameter, and the missing components of the initial state. The restoration phase involves one or more iterations and is designed to force constraint satisfaction to a predetermined accuracy, while the norm squared of the variations of the control, the parameter, and the missing components of the initial state is minimized.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA068928

Entities

People

  • A. K. Wu
  • Angelo Miele

Organizations

  • Rice University

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Astronautics
  • Boundaries
  • Boundary Value Problems
  • Calculus
  • Calculus Of Variations
  • Coefficients
  • Control Theory
  • Convergence
  • Differential Equations
  • Directional
  • Displacement
  • Equations
  • Errors
  • Notation
  • Universities

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Linear Algebra