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numerical differentiation of biomech data

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  • numerical differentiation of biomech data

    Hello

    I'm interested in matlab source code (not c-mex implementation)
    for the various filtering techniques of noisy biomechanical measurements.

    Would anyone happen to know any public sites where such source code is
    available. Currently, I'm looking into implementing one of the
    following techniques.


    1) GCVSPL
    &----------------------------
    Woltring 1986, Advanced Engineering Software, v8 104-107
    A Fortran Package for genereralized cross-validatory spline smoothing
    and differentiation.


    2) Regularized Fourier Series.
    %---------------------------
    Hatze 1981. Journal of Biomechanics v14, 13-18
    The use of optimally regularized Fourier series in estimating higher
    order derivatives of noisy biomechanical data


    3) Residual Analysis
    %-----------------
    Winter 1990
    Biomechanics and motor control of human movement 2nd ed
    Wiley Interscience


    Thank you
    Behzad Dariush
    Department of Electrical Engineering
    The Ohio State University

    dariushb@er4.eng.ohio-state.edu
    http://er4www.eng.ohio-state.edu/~dariushb
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