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  • Blind deconvolution of close-to-orthogonal pulse source applied to surface electromyograms
    Holobar, Aleš ; Zazula, Damjan
    Surface eIectromyogram (SEMG) decomposition technique suitable for identification of complete motor unit (MU) firing patterns during low level isometric voluntary muscle contractions is introduced. ... The approach is based on joint-diagonalization of whitened correlation matrices of SEMG recordings. It supposes constant and finite system impulse responses and more measurementsthan sources. Preliminary tests on synthetic signals prove 95% accuracy in detection of source pulses down to the signal-to-noise ratio of 10dB. In the case of real SEMG, recorded with an array of 61 electrodes during low level contraction of biceps brachii muscle of three subjects 2.5 MUs active with the mean firing rate of 11.8 Hz were identified on average.
    Vir: Independent component analysis and blind signal separation : Fifth International conference, ICA 2004, Granada, Spain, September 22-24, 2004 : proceedings (Vol. 3195, 2004, str. 1056-1063)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2004
    Jezik - angleški
    COBISS.SI-ID - 9147926

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