On Sun, Jun 14, 2009 at 07:45:32PM -0700, Colby Boyer wrote: > Hey All, > > I fixed the code in the pkt.py file so that DSSS with the barker code now > works. The main issue was the length of the barker interpolation filter was > way too short (like 8). I changed it so that it is now sample per baud * > 11. Additionally the barker sequence needs to be time reversed on the > receive side so that the correct match filter is formed. Otherwise the nice > autocorrelation properties of barker will go away. > > I am only able to test it using the test script with a channel filter and > gaussian noise and so far it has been a success there with both 1 and 2 Mbps > modulation rates. Can someone test with USRP2? Also the BER seems to be > much better as compared to just the RRC filter. Hopefully this will make > TX/RX much more robust. > > The code is uploaded to the CGRAN svn under the branch/usrp2_version in the > bbn project directory. > > Cheers, > Colby Boyer
Thanks, Colby! _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
