H∞ identification of human operator in control system - pedal operation by leg

Many systems operated by human operators can be considered as man-machine systems. In such systems, operators are integrated as a part of controller. So it is important that the property of operators is identified as its nominal value and its perturbation from the view point of the robust control design. In this paper, we propose the H_∞ identification methods to obtain the operator characteristics in the leg operation. In order to confirm the proposed method, we carried out the experiments with pedal operations.