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SignalUtils.DcFilter Function
SignalUtils | Functions
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:Design a DC filter with alpha parameter and place the transfer function in Num (numerator) and Den (denominator).

Pascal
procedure DcFilter(alpha: double; num: TVec; den: TVec); overload;
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Description

This transfer function can be used to initialize an IIR filter with a call to IirInit. A DC filtered signal will be centered around zero. The DC filter is a simple differentiator/integrator pair. alpha is typically between 0.99 and 0.9999 and must be < 1. A bigger alpha will cause longer filter delay.

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