Accession Number : AD0710206

Title :   AN INVESTIGATION INTO CERTAIN ASPECTS OF THE DESCRIBING FUNCTION OF A HUMAN OPERATOR CONTROLLING A SYSTEM OF ONE DEGREE OF FREEDOM,

Corporate Author : TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES

Personal Author(s) : Gordon-Smith,M.

Report Date : FEB 1970

Pagination or Media Count : 155

Abstract : An experimental investigation was carried out of the 'remnant' portion of the mathematical model of the human operator. This model consists of the combination of a quasilinear describing function and a remnant term. A single-axis tracking task, with random forcing functions and a compensatory display, was used to investigate the effect of the type of manipulator and the bandwidth of the forcing function on the remnant. Pressure and free-moving manipulator were employed with rate-control vehicle dynamics and filtered-white-noise forcing functions similar in spectral shape to those used in previous work. Data is presented which show the effects of the manipulator and of the forcing function on the describing function, on the performance measures of the system and on the power spectrum and the amplitude probability distribution of the remnant. (Author)

Descriptors :   (*MAN MACHINE SYSTEMS, CONTROL SYSTEMS), (*PERFORMANCE(HUMAN), MATHEMATICAL MODELS), SYSTEMS ENGINEERING, OPERATORS(PERSONNEL), NONLINEAR SYSTEMS, ADAPTIVE SYSTEMS, PERIODIC VARIATIONS, REACTION(PSYCHOLOGY), STATISTICAL ANALYSIS, CURVE FITTING, CYBERNETICS, CANADA

Subject Categories : Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE