Low pass IIR Digital differentiator weighted Inverse Simpson and trapezoidal scheme based on Al-Aloui's ideas on inverting the IIR integrators
For more information:
YangQuan Chen (2021). Low-pass IIR digital differentiator design (https://www.mathworks.com/matlabcentral/fileexchange/3517-low-pass-iir-digital-differentiator-design), MATLAB Central File Exchange. Retrieved .
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A generalized framework called MaxPol has been recently published and made available here
MaxPol provides a framework to design variety of numerical differentiation kernels with properties like:
(1) Cutoff (lowpass) design with no side-lob artifacts (for noise-robust case)
(2) Arbitrary order of differentiation
(3) Arbitrary polynomial accuracy
(4) Derivative matrix design
(5) 2D Derivative Kernels with Steering moments
(6) Intuitive examples in Signal and Image processing
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