On Fri, Jul 04, 2008 at 07:52:56AM -0700, irene159 wrote: > Can someone give me more informations on the "rational_bw" parameter?
I apologise for not answering the actual question. This parameter controls how wide the transition band for the interpolation filter can be and depends on the oversampling of your original signal. Say you are resampling by factor 2/3 (i.e. your sampling rate becomes smaller in the process). Say your signal is fairly narrow band, and even with 2/3 the sampling rate, the highest available frequency is only 1/4 of your sampling frequency. Then you can have a fairly wide transition width (rational_bw = 0.25). If you don't know anything about your signal, you must set rational_bw close to 0.5 to allow as many frequencies as possible, but that results in higher filter complexity. > Are there any files using resampling function that I can take a look at? Sure, loads. Just search through the examples. -- Martin Braun Institut fuer Nachrichtentechnik Universitaet Karlsruhe http://www.int.uni-karlsruhe.de
pgpBmRICLjq3W.pgp
Description: PGP signature
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
