BTW, I also got more fuzzy 16 points save by chunks2symbols.dat before the filter. Could anyone help me explain it? Thanks, Brook
Brook Lin wrote: > > Hi All, > > I am plotting the constellation plot for qam8 before and after the root > raised cosine filter. Why I didn't get clear 8 dots constellation before > the root raised cosine filter (plotted from the data saved by > chunks2symbols.dat)? For both constellation before (data saved by > chunks2symbols.dat) and after (data saved by rrc_filter.dat) the filter, I > got 8 fuzzy dots. Can anyone tell me why is that? However, for dbpsk, I > got clear two points before the filter, but fuzzy two points after the > filter. > > Thanks in advance, > Brook > > http://old.nabble.com/file/p31632653/qam8_before_filter.png > http://old.nabble.com/file/p31632653/qam8_after_filter.png > > > -- View this message in context: http://old.nabble.com/qam-constellation-problem-tp31632653p31632766.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
