A ROBUST CONTROL MODEL OF HUMAN TRACKING PERFORMANCE††Project Supported by the National Natural Science Foundation of China

Based on internal model concept and state-space technique, a robust control model is developed to describe the response characteristics of the human operator in man-machine control systems with arbitrary nonstochastic disturbances. The model consists of a servo compensator, a stabilizing compensator, and a set of gains to describe not only human's information processing and control behavior, but human's adaptive response to the arbitrary nonstochastic disturbances as well. Experimental data from the simulations of antiaircraft artillery (AAA) tracking system have validated the model. Model predictions of the ensemble means and standard deviations of tracking errors are in satisfactory agreement with the experimental data.