pico-tracker/sim/si_fir_filter

Design of the Si TX Spectral Shaping Filter

It's a 17-tap digital FIR filter. No idea what the sample rate is, but it could be the IF? That's 400kHz or so..

Python Usage

ipython --pylab

%run test.ipy

Calcuating new coefficients

There's an awesome calculator here here

Sources

The python script is from here