On Wed, Mar 11, 2009 at 06:45:02AM -0700, David Adrian wrote: > Thank you for the replies Eric! > > 1.You > said about using file_sink , but in my case I do not think that will > work because I need to make real time precessing of the signal. If I > use files it will take to long. > 2. My theses is about simulating > the acquisition of 2 signals (co-polar and cross-polar ) from a > satellite (10.7 Mhz) and estimate their amplitudes and relative phase. > So the first thing I am trying to do is to estimate the co-polar having > an SNR of 14 db and the power about 10dbm. To do that I have set the > NCO 10.7Mhz, and decim_rate to 256 in order to bring the signal to its > base-band and I was thinking of creating a loop of let's say 10 times > in which we acquire 256 or 512 samples using a window, perform the fft > and from here to extract the maximum power bin and it's frquency, > perform an avarage on this powers and the display the result in a > window. > > I got stucked on this for almost 2 weeks.:( > > Thank you
Try looking up "carrier tracking" on line or in a good digital communications textbook. http://gnuradio.org/trac/wiki/SuggestedReading Eric _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
