Tom After reading gr_ofdm_insert_preamble.cc it looks like the pilots are sent periodically after every few payload symbols on all frequency bins. Is it like what I have shown attached ? If yes, then how may payload symbols are sent between two pilots ?
Another related question is: Who sets the parameters for the work function in this block ? particularly noutput_samples. Srinivas WINLAB, Rutgers University, NJ On Thu, Aug 26, 2010 at 11:58 AM, Tom Rondeau <trondeau1...@gmail.com>wrote: > On Tue, Aug 10, 2010 at 9:53 AM, Marcin Szelest > <marcin.szel...@gmail.com> wrote: > > Hello, > > > > > > I'm trying to add pilots to an OFDM modulation, is it possible with > OFDM_mod > > block? > > How I can "boost" energy of pilot in OFDM signal? > > > > Regards, > > Marcin > > http://szelest.org > > Yes, this is possible. There is a subcarrier mask concept in the > modulator and demodulator block that you should be able to use. Right > now, it specifies if a carrier is in use or not (e.g., data or > nothing). There are some hooks in there to add pilot tones pretty > easily to the modulator. Actually using them in the demodulator is > where you'll have to focus most of your attention. > > Tom > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Srinivas
<<attachment: PilotTones.jpg>>
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