Generation of forcing functions for evaluating performance at the man-machine interface

Abstract

The evaluation of the performance of individuals or devices at the man-machine interface can, in most instances, be accomplished through the simulation of typical dynamic tasks. This paper describes a simple, flexible technique for the generation of waveforms for use as forcing functions in such situations. The technique uses an analog computer under the control of external digital logic. A one-dimensional tracking problem illus trates the use of the technique. Diagrams and all relevant parameters for this problem are given. The simulation system creates a straight-line- segment graph to control the target. The system includes an automated scoring feature with digital printou t.