2011/2/24 Ingmar Meins <[email protected]>: > If I remember correctly the audio rate is literally the data rate your sound > card is sampling at eg 32kHz or 44.1kHz and quad rate is the incoming rf > sampling rate. For example you may have sampled your RF at 128kHz and be > running your audio (or whatever) at 32kHz.
Yes, that's it. If, for a simple example, you have: sig_source_f -> nbfm_tx -> usrp_sink_c The audio rate would be the rate from the signal source and the quadrature rate would be the output rate of the nbfm_tx that you send to the URSP sink (usrp ADC rate / interp). Tom > On 24/02/2011 11:45 PM, ömer günay wrote: > > I am trying to do sdr radar. I will send linear fm modulated signal and > then take it. I am seaching fm modulating blocks in grc. I ran some examples > but could not understand it is true or not. I also looked nbfm and wbfm > transmitter and receiver blocks in grc but i could not find any documents > about these blocks. For example what do audio_rate and quadrature_rate mean? > I must do linear fm transmitter and receiver for our project. Could you help > me if you have any documents or opion? > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
