Accession Number : AD0714820

Title :   A Modified Method of Steep Descent for Parameter Identification.

Descriptive Note : Technical rept.,

Corporate Author : IOWA UNIV IOWA CITY DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Isenhoff,Eric H. ; Lance,George M.

Report Date : OCT 1970

Pagination or Media Count : 21

Abstract : The paper presents an extension of the output error method of parameter identification to four and five parameter third order systems using a modified method of steep descent with a time invariant error surface. A three step adjustment algorithm is developed. This algorithm requires the use of results from a partial frequency response (at least two frequencies) and the steady state response to a step input. Results are presented for both four and five parameter systems. (Author)

Descriptors :   (*CONTROL SYSTEMS, MATHEMATICAL MODELS), (*PARTIAL DIFFERENTIAL EQUATIONS, NUMERICAL ANALYSIS), ALGORITHMS, RESPONSE, PHASE SHIFT CIRCUITS, GRAPHICS, STEEPEST DESCENT METHOD

Subject Categories : Theoretical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE