An improved wavelet threshold applied to surface electromyogram de-noising

Surface Electromyogram (sEMG), which is recorded by the electrodes from the skin surface, can reflect the weak bioelectric signals of the related activation of neuromuscular system (Luca and Carlp, 1979). It has been widely applied in the field of basic research, clinical medicine, rehabilitation medicine and sports medicine etc. (Yin, 2013). It is also well established that sEMG is a nonlinear and non-stationary signal (Xugang et al., 2012). In addition, its peak value is in the range of 0 –10mV and the useful signal energy is very weak, which is generally in the range of 10Hz–50Hz.
Source: Computerized Medical Imaging and Graphics - Category: Radiology Authors: Source Type: research