Congratulations. I knew you would find it since you were that close. Please share if you are allowed. I am certain we have wide spread interest in this particular piece of work.
Bob On Fri, Dec 16, 2011 at 3:09 AM, Phone Naing MYINT < phonenaing.my...@sg.panasonic.com> wrote: > Hi Bob,**** > > ** ** > > Your guess is correct, I found the error from Transmitter side. Now the > synchronization is working fine.**** > > ** ** > > PN**** > > ** ** > > *From:* Robert McGwier [mailto:rwmcgw...@gmail.com] > *Sent:* Thursday, December 15, 2011 8:53 PM > *To:* Phone Naing MYINT > *Cc:* discuss-gnuradio@gnu.org; usrp-us...@lists.ettus.com > *Subject:* Re: [Discuss-gnuradio] Costas loop and M&M algorithm on FPGA*** > * > > ** ** > > At high SNR, a single bit is probably enough in the detector and 15 bits > in the phase accumulator is also likely more than enough. The error, in my > opinion, is elsewhere.**** > > ** ** > > Tell us about your work here please:**** > > ** ** > > https://www.cgran.org/ **** > > ** ** > > after you have set up your git repository here:**** > > ** ** > > https://github.com/ **** > > ** ** > > and here are some useful instructions**** > > ** ** > > http://gnuradio.org/redmine/projects/gnuradio/wiki/DevelopingWithGit **** > > ** ** > > Thanks, in advance, for sharing**** > > ** ** > > Bob**** > > ** ** > > On Thu, Dec 15, 2011 at 1:52 AM, Phone Naing MYINT < > phonenaing.my...@sg.panasonic.com> wrote:**** > > Hi,**** > > **** > > Anyone here implemented freq/phase correction and symbol timing correction > in USRP’s FPGA? **** > > **** > > Recently I implemented Costas loop and Muller & Mueller algorithm in RTL > by referring the gnuradio code. Now I’m testing it on FPGA. I can get > correct demodulated data(DQPSK) at initial few thousand symbols. After that > I’m getting all rubbish data. **** > > **** > > I think the problem with my RTL implementation is not good enough > bit-resolution (unlike implementation on PC). Currently I’m using 15-bits > resolution for decimal part. Anyone has any suggestion ?**** > > **** > > PN **** > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio**** > > > > **** > > ** ** > > -- > Bob McGwier**** > > Facebook: N4HYBob**** > > ARS: N4HY**** > > ** ** > > ** ** > -- Bob McGwier Facebook: N4HYBob ARS: N4HY
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