On Thu, Nov 8, 2012 at 2:24 PM, sibar002 <sibar...@ucr.edu> wrote: > Hello, > > I am trying to create an ook modulation and demodulation block. So far, I > have created a block similar to the bpsk block. I changed my constellations > points to 1+0j and 0+0j. I want a rectangular pulse to be transmitted for a > 1 and nothing for 0. I was told I could do this by changing the > raise_root_cosine filter used in the generic_mod_demod.py to a LPF filter. I > am unsure how to do this. Could any one help? I would greatly appreciate any > help. Thank you for your time and help. > > Sam
Line 137 in generic_mod_demod.py is where the RRC filter taps are created for the transmitter. Change from using a gr.firdes.root_raised_cosine to gr.firdes.low_pass_2. Use this page for details of what the arguments to the low_pass_2 filter generator function are: http://gnuradio.org/doc/doxygen/classgr_1_1filter_1_1firdes.html Tom _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
