On Tue, Jan 5, 2016 at 7:56 AM, Ekko <chai18740449...@gmail.com> wrote:
> hello tom > i replace the <fec extended encodec> with the <fec encoder>,just like > > > > and i am using the Dummy Encoder and Dummy Decoder > > but ,i got > Traceback (most recent call last): > File "/home/cdl/gmsk_fec/gmsk_fec.py", line 236, in <module> > tb = gmsk_fec() > File "/home/cdl/gmsk_fec/gmsk_fec.py", line 83, in __init__ > self.fec_generic_encoder_0 = fec.encoder(enc_dummy, gr.sizeof_char, > gr.sizeof_char) > File "/usr/local/lib/python2.7/dist-packages/gnuradio/fec/fec_swig.py", > line 894, in make > return _fec_swig.encoder_make(*args, **kwargs) > TypeError: in method 'encoder_make', argument 1 of type > 'gr::fec::generic_encoder::sptr' > > > 2->i open the "ber_curve_gen.grc" > > but there is an error > You can find all of the FEC alist files installed into $prefix/share/gnuradio/fec/ldpc. Use that to locate and set that file name properly. Tom thank you > > --Ekko > > > 2016-01-04 22:58 GMT+08:00 Tom Rondeau <t...@trondeau.com>: > >> On Tue, Dec 29, 2015 at 11:24 AM, Ekko <chai18740449...@gmail.com> wrote: >> >>> hello bob >>> this problem have been solved,now my fec&gmsk is worked >>> but i got a new problem >>> this is my fec+gmsk grc >>> http://i.imgur.com/ZH2qhh6.png >>> >>> and this is my gmsk without fec >>> http://i.imgur.com/zJVskUX.png >>> >>> when i run these two grc,i got a similar value of ser >>> >>> i think that in the way of gmsk&fec,i will got a error rate value >>> smaller than the single gmsk,but i did not got it, >>> so i think there is somethin wrong in my grc,hope someone who can help >>> me to check my grc ,or give me sone instruction about the using of fec. >>> >>> thank you >>> >>> --Ekko >>> >> >> >> Ekko, >> >> It might be worth using the exact same graph for both tests but use the >> Dummy Encoder and Dummy Decoder variables for the FEC codes. These are just >> pass-through "codes" that allow you to easily use the same structure with >> and without any actual coding. >> >> Also, you should run "ber_curve_gen.grc" that comes as an example with >> gr-fec. This will give you an idea of what kind of BER correction you >> should expect for the different codes. >> >> Tom >> >> >> >> >>> 2015-12-29 13:15 GMT+08:00 bob wole <bnw...@gmail.com>: >>> >>>> Ekko, >>>> >>>> Add a Tag debug block after your packet encoder and see if there are >>>> any tags coming out of it. I think packet encoder is not passing your tag. >>>> If that is the case, move your stream to tagged stream block after the >>>> packet encoder just before the FEC extended tagged encoder. Hope it helps. >>>> >>>> >>>> -- >>>> Bob >>>> >>>> >>>>> >>>>> this is the address of picture >>>>> >>>>> http://imgur.com/2EQiY6O >>>>> >>>>> sorry to send two e-mails >>>>> >>>>> >>>>> >>>>> >>>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >>> >> >
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