Accession Number : AD0605518

Title :   LEARNING, ADAPTATION AND CONTROL IN INFORMATION SYSTEMS; PT I,

Corporate Author : COMPUTER SCIENCES LAB NORTHWESTERN TECHNOLOGICAL INST EVANSTON ILL

Personal Author(s) : Tou,J. T. ; Hsieh,H. C. ; Szego,G. P. ; Lin,T. T. ; Nuspl,P. P.

Report Date : SEP 1964

Pagination or Media Count : 192

Abstract : A study was made of optimal control in the continuous control mode and in the discrete mode. Comparisons are made between the two solutions with particular emphasis on practical implementation. The generalized quadratic performance index is used, as well as the integral of the control absolute value. Sub-optimal control in the discrete mode is investigated. Reasons for using sub-optimal control are discussed. A direct enumeration approach is used for a bang-off-bang problem. A second approach is to use a modified performance index with a smaller number of decisions. An important part of the paper is the design of a simple digital controller. This is a feasibility study and an application of computer design techniques. NAND logic and RST flip-flops are the controller modules. (Author)

Descriptors :   (*COMPUTERS, CONTROL SYSTEMS), COMPUTER LOGIC, LINEAR SYSTEMS, OPTIMIZATION, DYNAMIC PROGRAMMING, DECISION THEORY, DIGITAL SYSTEMS, DIFFERENTIAL EQUATIONS, RELAXATION OSCILLATORS, INTEGRALS

Distribution Statement : APPROVED FOR PUBLIC RELEASE