Abstract
When the human muscle is activated, we can observed a voltage called electromyogram (EMG). The EMG signal is expected to be used for the power assist system, motion estimation, and so on since it reflects human intention in the most direct manner. This paper presents a modeling strategy of the relation between human joint angle and the EMG. In particular, the relation between the wrist angle and the EMG of Extensor carpi radialis longus muscle is modeled based on the piecewise ARX model. By estimating the wrist angle using the identified model and observed EMG signal, the effectiveness of the proposed modeling strategy is verified.
