Thank you Tom. It works when using fir from filter module.
On Thu, Jan 30, 2014 at 2:10 PM, Tom Rondeau <t...@trondeau.com> wrote: > On Thu, Jan 30, 2014 at 4:47 AM, Nemanja Savic <vlasi...@gmail.com> wrote: > > After a few more tries to figure out how this works I realized that > method > > taps() can return list of coefficients only if set_taps was called before > > for setting taps. In the constructor of filter set_taps is not called, > so my > > question is which taps does filter use? > > It uses those taps, but it looks like it doesn't set a variable inside > to hold them until you call set_taps on it. The fir filter blocks > encapsulate another fir kernel, which is where the real taps are > actually stored. When you create your FIR filter, the taps are being > set correctly. > > You should switch to using filter.fir_filter, which exists in 3.6.5.1. > It will help future-proof you when moving up GNU Radio versions. > Getting the taps here right after creating the filter will work fine > in this implementation. > > Tom > > > > On Wed, Jan 29, 2014 at 6:54 PM, Nemanja Savic <vlasi...@gmail.com> > wrote: > >> > >> Hi all guys, > >> > >> this two lines of code sort of doesn't work as I expect. > >> > >> self.channel_filter = gr.fir_filter_ccf(1, firdes.low_pass(10, > samp_rate, > >> 80000, 5000, firdes.WIN_HAMMING, 6.76)) > >> > >> print self.channel_filter.taps(), self.channel_filter > >> > >> I use 3.6.5.1 version and the only thing I get is empty tuple. > >> > >> What might be the problem? > >> > >> Best and thank you, > >> > >> -- > >> Nemanja Savić > > > > > > > > > > -- > > Nemanja Savić > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > -- Nemanja Savić
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