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http://dx.doi.org/10.5302/J.ICROS.2008.14.12.1278

Optimization-based Real-time Human Elbow Joint Angle Extraction Method  

Choi, Young-Jin (한양대학교 전자컴퓨터공학부)
Yu, Hyeon-Jae (한양대학교 대학원 전자전기제어계측공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.14, no.12, 2008 , pp. 1278-1285 More about this Journal
Abstract
An optimization-based real-time joint angle extraction method of human elbow is proposed by processing the biomedical signal of surface EMG (electromyogram) measured at the center point of biceps brachii. The EMG signal is known as non-stationary (time-varying) signal, but we assume that it is quasi-stationary because a physical or physiological system has limitations in the rate at which it can change its characteristics. Based on the assumption, a pre-processing method to obtain pre-angle values from raw EMG signal is firstly suggested, and then an optimization method to minimize the error between the pre-angle and real joint angle is proposed in this paper. Finally, we suggest the experimental results showing the effectiveness of the proposed algorithm.
Keywords
EMG (Electromyogram) signal; lagrange multiplier method; moving averaging; optimization; real-time signal processing;
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Times Cited By KSCI : 1  (Citation Analysis)
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