Compensatory Tracking in Disturbance Tasks and Target Following Tasks. The Influence of Cockpit Motion on Performance and Control Behaviour

摘要

Manned, moving base simulator experiments show improved tracking performance (lower error RMS) in disturbance tasks as well as in target following tasks when cockpit motion is added to a basic, visual, artificial horizon display. For so-called disturbance tasks, where the disturbing signal acts on the controlled element and where system output is presented on the display, improved performance due to cockpit motion is accompanied by measured increases in crossover frequency while phase margin remains fairly constant. The present report clarifies the experimental findings both qualitatively and quantitatively by analyzing the differences of the two tasks in terms of classic control theory and by using experimental data on vestibular motion perception.