Re: [Discuss-gnuradio] Implementation of a butterwork filter with GnuRadio

[Matt Ettus]

Terry Barnaby wrote:
> Hi,
> 
> We are looking at using the GnuRadio system in a signal processing system
> we are designing. One of the requirements is for a butterworth filter.
> Does anyone have any sugestions on how to implement this using the
> GnuRadio system ?
> 
> I note there is an IIR filter implementation "gr_iir_filter_ffd", but
> is there a good way to generate the required tap coefficients ?


There is code for this on Tony Fisher's filter design site.
Incorporating that into GNU Radio would be great.

http://www-users.cs.york.ac.uk/~fisher/mkfilter/

Matt