Hi, I am not sure I understand your problem exactly. Are you defining the variable as
firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), 0.35, 11*sps*nfilts) ?? There is a zip file containing all these examples. I assume you already have them. If not, you can find them in the link below. http://www.trondeau.com/storage/tutorial/mpsk_scripts.tar.gz On Wed, Feb 19, 2014 at 10:43 PM, zielalaoui <[email protected]> wrote: > Hi Martin, > Thanks for your answer, actionnally I don't have a code yet because I am > trying to run simulation from the flowgraph directly. The problem is in the > polyphase clock sync, in this block i should define several parameters even > the filter taps. Normally, I should add coefficients values or provide a > function able to calculate them. in the tutorial > http://www.trondeau.com/storage/grcon12/rondeau-mpsk_tutorial.pdf , Tom > used > this command *firdes.root_raised...* which i think that's > firdes.root_raised_cosine and maybe I missed something, therefore it still > red so the block cannot be functional. The question is how can i obtain the > filter taps on my polyphase clock sync by using firdes.root_raised_cosine? > Any proposition is appreciate > Zakaria > > > > > -- > View this message in context: > http://gnuradio.4.n7.nabble.com/rrc-taps-filter-coefficents-problem-in-polyphase-clock-sync-tp46393p46410.html > Sent from the GnuRadio mailing list archive at Nabble.com. > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Manu T S
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