Accession Number:

AD0744116

Title:

Dual Control and Identification Methods for Avionic System - Part 2, Optimal Inputs for Linear System Identification

Descriptive Note:

Technical Report

Corporate Author:

SYSTEMS CONTROL INC (VT) PALO ALTO CA PALO ALTO United States

Personal Author(s):

• Mehra,Raman K.
• Stepner,David E.
• Tyler,James Jr S.
• Casti,John A.

Report Date:

1972-05-01

Pagination or Media Count:

80.0

Abstract:

The report presents the results of the second part of a one-year study on Dual Control and Identification Methods for Avionic Systems. First, a general theory is developed for designing optimal inputs to identify parameters in linear dynamic systems. It is shown that the optimal energy constrained unput maximizing a weighted trace of the Fisher information matrix is an eigenfunction of a positive self-adjoint operator corresponding to its largest eigenvalue. Several numerical algorithms are described for computing the optimal inputs. A computer program based on the Riccati Equation algorithm is developed and used for computing optimal elevator deflection time histories to identify the short period stability and control derivatives of C-8 aircraft.

Descriptors:

• (ADAPTIVE CONTROL SYSTEMS
• MATHEMATICAL MODELS)
• LINEAR SYSTEMS
• INPUT OUTPUT DEVICES
• IDENTIFICATION SYSTEMS
• INTEGRAL EQUATIONS
• MATRICES(MATHEMATICS)
• COMPUTER PROGRAMS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE