"Wavelet differentiation of noisy signals"

"Wavelet differentiation of noisy signals"
Patrickeyev I.A., Stepanov R.A., Frick P.G.

Several algorithms for differentiating noisy signals are considered. The wavelet-based technique proposed is compared with others based on the Fourier transform and the finite difference method. Accuracy of calculations for various algorithms is estimated with the use of two model examples.