Accession Number : AD0744116

Title :   Dual Control and Identification Methods for Avionic System. Part II. Optimal Inputs for Linear System Identification.

Descriptive Note : Final rept.,

Corporate Author : SYSTEMS CONTROL INC PALO ALTO CALIF

Personal Author(s) : Mehra,Raman K. ; Stepner,David E. ; Tyler,James S. , Jr. ; Casti,John A.

Report Date : MAY 1972

Pagination or Media Count : 79

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. (Author)

Descriptors :   (*ADAPTIVE CONTROL SYSTEMS, MATHEMATICAL MODELS), LINEAR SYSTEMS, INPUT OUTPUT DEVICES, IDENTIFICATION SYSTEMS, INTEGRAL EQUATIONS, MATRICES(MATHEMATICS), COMPUTER PROGRAMS

Subject Categories : Aircraft
      Theoretical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE