FES based wrist tremor suppression using multi-periodic repetitive control

Zhang, Zan, Chu, B., Liu, Yanhong and Owens, D. H. (2020) FES based wrist tremor suppression using multi-periodic repetitive control. IFAC-PapersOnLine, 53 (2), 10135-10140. (doi:10.1016/j.ifacol.2020.12.2739).

Record type: Meeting abstract

Abstract

Tremor is a very common motor disorder, mainly manifested as involuntary, periodic and rhythmic movement in any part of the body, especially in hands and upper-limbs, which seriously affects the life quality of patients. Functional electrical stimulation (FES) has been shown a promising technique to suppress tremor. Most existing FES based design methods assume tremor is a single frequency signal which however is a highly idealized simplification of the real case which contains multiple-frequency or even a frequency band, therefore limiting their practical performance. To address this problem, this paper proposes a controller design method based on multi-periodic repetitive control that is capable of suppressing tremor signal with multiple frequencies. Simulation and experimental results verify the effectiveness of the proposed method

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