Accession Number : AD0721220

Title :   Predictive and Adaptive Processes in the Control of Air Force Systems.

Descriptive Note : Annual rept. no. 1,

Corporate Author : DUNLAP AND ASSOCIATES INC SANTA MONICA CALIF WESTERN DIV

Personal Author(s) : Kelley,Charles R. ; Prosin,Daniel J.

Report Date : 30 JUL 1970

Pagination or Media Count : 67

Abstract : The objective of this project is to investigate adaptive and predictive processes in planning, decision, and control systems. Real and fast time analog computing equipment were connected via an especially developed interface device to a desk top digital computer, to form together a unique small laboratory facility for studying adaptive and predictive processes and devices. In this first year of the project, three experimental studies of prediction in manual control were conducted. A display blanking technique established that the operator's error in predicting the outcome of his control actions is very nearly proportional to the length of time ahead that he predicts. This result held for second and third order controlled elements throughout the range of prediction times of concern in predictive control (1 to 9 seconds in these studies). A functioning predictive model of the human operator was then mechanized which showed many of the characteristics of manual control, including an insensitivity to changes in controller signal gain that is typical of human operators but not of non-predictive forms of human operator model. The final study utilized the display blanking technique again to show that prediction: reflected learing in a manual control loop; was very sensitive to operator loading via a secondary tracking task; and was highly resistant to effects of operator fatigue. (Author)

Descriptors :   (*AIR FORCE TRAINING, PERFORMANCE(HUMAN)), (*ADAPTIVE CONTROL SYSTEMS, MATHEMATICAL MODELS), DECISION MAKING, MAN MACHINE SYSTEMS, AIR FORCE PERSONNEL, COMPUTER PROGRAMMING, HUMAN FACTORS ENGINEERING

Subject Categories : Humanities and History

Distribution Statement : APPROVED FOR PUBLIC RELEASE