NDLI: Design of Two-Dimensional Grid Electrodes Considering Spatial Characteristics of SEMG Signal

Content Provider	IEEE Xplore Digital Library
Author	Rahman, M.M. Ferdjallah, M. Harris, G.F.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Tennessee Univ., Knoxville, TN (Rahman, M.M.; Ferdjallah, M.)
Abstract	Surface grid electrode is a noninvasive technique, which can be utilized for topographic analysis of EMG signals. Grid electrode increases the uptake area and provides a better picture of spatial and temporal characteristics of muscle activity. Determination of clinical parameters such as muscle conduction velocity, location of innervation zone, firing pattern, size and location of motor unit, are some of the challenging applications of multi-electrode array. However, an optimum grid electrode requires detail examination regarding the dimension and inter-electrode distance of the array. In this paper a systematic approach is presented for selecting a grid spacing to reduce spatial aliasing. The characteristics of isotropic layers of subcutaneous fat and skin tissues are incorporated in a computer muscle model in order to analyze their effects on complete potential profile and grid spacing. The variation of spatial cutoff frequency and corresponding inter electrode distance with depth of muscle fiber inside the muscle are simulated in both time and frequency domain for three different levels of accuracy
Starting Page	297
Ending Page	300
File Size	1919181
Page Count	4
File Format	PDF
ISBN	0780387104
DOI	10.1109/CNE.2005.1419616
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Cutoff frequency Muscles Noninvasive treatment Grid computing Electromyography Skin Surface topography Signal analysis Signal design
Content Type	Text
Resource Type	Article

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