Accession Number : AD0664912

Title :   DESIGN OF ADAPTIVE CONTROL SYSTEMS THROUGH UTILIZATION OF SENSITIVITY CONCEPTS,

Corporate Author : TEXAS UNIV AUSTIN LABS FOR ELECTRONICS AND RELATED SCIENCE RESEARCH

Personal Author(s) : Masten,Michael K. ; Womack,B. F.

Report Date : 04 JAN 1968

Pagination or Media Count : 133

Abstract : The problem of controller design for unidentified time variable systems is considered. The adaptive solution obtained does not identify the unknown plant; rather a low order linear tracker is determined whose behavior is 'near' to that of the plant. The tracker characteristics are sufficiently similar to those of the plant so that controller synthesis based on the information gained from the tracker is assumed adequate for control of the plant. The tracker must be rapidly determined since the plant is time variable; time intervals for which the tracker is not an accurate approximation of the plant represent periods of inferior control. The adaptive rate at which the tracker is determined is considered and a scheme which will provide rapid adaption is developed. Controller design is based upon the approximate plant description provided by the tracker. It is recognized that this description is approximate so the controller is designed in order that overall performance is relatively insensitive to this approximation. Sensitivity theory is employed in the achievement of this objective. (Author)

Descriptors :   (*OPERATIONS RESEARCH, *ADAPTIVE CONTROL SYSTEMS), SENSITIVITY, TRANSFER FUNCTIONS, MATHEMATICAL MODELS, APPROXIMATION(MATHEMATICS), ITERATIONS, FLOW CHARTING, OPTIMIZATION, AUTOMATION, LEARNING MACHINES, ARTIFICIAL INTELLIGENCE

Subject Categories : Operations Research
      Mfg & Industrial Eng & Control of Product Sys
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE