Try the gr-fec blocks - specifically the Extended En/Decoders. The CCSDS27 blocks are fine, but they're older and for a specific set of polys.
On Mon, Mar 20, 2017 at 11:57 AM Ron Economos <w...@comcast.net> wrote: > In the "Error Coding" category of GNU Radio Companion, there are > Puncture and Depuncture blocks. > > Here are some example parameters that work for DVB-S. > > 1/2 code rate = Puncture Size = 2, Puncture Pattern = 0b11 > 2/3 code rate = Puncture Size = 4, Puncture Pattern = 0b1101 > 3/4 code rate = Puncture Size = 6, Puncture Pattern = 0b110110 > 5/6 code rate = Puncture Size = 10, Puncture Pattern = 0b1101100110 > 7/8 code rate = Puncture Size = 14, Puncture Pattern = 0b11010101100110 > > Ron > > On 03/20/2017 08:40 AM, Booth wrote: > > Dear All, > > I've been playing with the CCSDS27 viterbi decoder block which supports > 1/2 > > rate. However we also need punctured codes like 3/4, 5/6, 7/8. Which > block > > should we use. Any recommendations? > > > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Very Respectfully, Dan CaJacob
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