Summary
Design a notch filer.
Unit
SignalUtils
Declaration
Procedure NotchFilter(NotchFrequency, r: TSample; num, den: TVec; FS: TSample = 2);
Description
Design a notch filter and place the transfer function in Num (numerator) and Den (denominator). You can then use this transfer function to initialize an IIR filter with a call to IirInit. A notch filter will filter out the notch frequency. and r defines the attenuation and width of the transition band. Typical values for r are from 0.99 to 0.9999.
Categories
IIR filter design routines| Copyright 2008 Dew Research |
http://www.dewresearch.com