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optimal-filter

Using machine learning algorithms for recursive digital filter optimization

This is an example of using automatic differentiation and optimization methods of TensorFlow to design a 6-order gigital band-pass IIR filter with frequency response as close as possible to the analog filter of the same order.

Initial digital filter is computed using bi-linear transform: Initial filter, frequency response

Adam algorithm is used to make the digital filter's frequency response closer to analog filter. Optimized filter, frequency response

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Using machine learning algorithms for IIR filter optimization

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