[Ground-station] Now that we've heard some good news... LDPC block work needed - LDPC team alert

[Michelle Thompson]

Update: Ron W6RZ has a draft GNU Radio block in progress.

Ahmet also has BCH code. As you all know, DVB-S2/X uses concatenated
LDPC-BCH forward error correction. We have spent some time talking about
and learning about LDPC, but BCH is in there too.

-Michelle W5NYV




On Wed, Oct 24, 2018 at 1:56 PM Ahmet Inan <xdsopl at gmail.com> wrote:

> Fixed it on the master branch.
>
> Ahmet
> On Wed, Oct 24, 2018 at 10:21 PM Michelle Thompson
> <mountain.michelle at gmail.com> wrote:
> >
> > Just keeping everyone in the loop:
> >
> > Ron reports that if we want Ubuntu 16.04 compatibility, then it has to
> work with gcc 5.4. He says that specifically, std::clamp isn't available.
> >
> > -Michelle W5NYV
> >
> >
> >
> > On Wed, Oct 24, 2018 at 5:23 AM Ahmet Inan <xdsopl at gmail.com> wrote:
> >>
> >> Yeah, I did the math last night to get soft information from BPSK,
> >> QPSK and 8PSK modulation and it would be nice if someone could look
> >> over it.
> >> I am not entirely sure if I got the SNR stuff right but it works very
> well.
> >>
> >> Also, please beware that my 8PSK is Pi/8 rotated.
> >>
> >> I put the new PSK stuff into the psk branch in order not to disturb
> >> the others using the master tree:
> >> https://github.com/xdsopl/LDPC/tree/psk
> >>
> >> Ahmet
> >> On Wed, Oct 24, 2018 at 1:32 PM Michelle Thompson
> >> <mountain.michelle at gmail.com> wrote:
> >> >
> >> > Thank you Ahmet.
> >> >
> >> > I believe your next goal is performance improvements with PSK?
> >> >
> >> > Is there anything that we can do to help out with this part?
> >> >
> >> > -mdt
> >> >
> >> > On Tue, Oct 23, 2018, 23:30 Ahmet Inan <xdsopl at gmail.com> wrote:
> >> >>
> >> >> Just fixed the few issues regarding g++ compatibility.
> >> >> You can switch between clang++ and g++ in the Makefile.
> >> >>
> >> >> Ahmet
> >> >> On Wed, Oct 24, 2018 at 8:17 AM Michelle Thompson via Ground-Station
> >> >> <ground-station at lists.openresearch.institute> wrote:
> >> >> >
> >> >> > Ron reports that the Clang dependency is problematic. A conversion
> to gcc will/should be discussed.
> >> >> >
> >> >> >
> >> >> >
> >> >> > On Tue, Oct 23, 2018, 14:25 Michelle Thompson <
> mountain.michelle at gmail.com> wrote:
> >> >> >>
> >> >> >> We heard some good news yesterday.
> >> >> >>
> >> >> >> But there is bad news!
> >> >> >>
> >> >> >> The bad news is that we aren't done yet, and have plenty to do!
> >> >> >>
> >> >> >> I'm working on getting the DVB-S2/X code donation from Aerospace
> Corporation (offered at the GRCon18 Block Party) into the code base of GNU
> Radio. In the meantime, we have a recently published open source LDPC
> repository that we should look at, right now.
> >> >> >>
> >> >> >> https://github.com/xdsopl/LDPC
> >> >> >>
> >> >> >> This is written by Ahmet Inan, Co-founder & CEO aicodix GmbH.
> They are located in Germany and is on our Slack.
> >> >> >>
> >> >> >> Recent bugs in this codebase have been sorted out. Can we get
> this into a GNU Radio block and tested ASAP?
> >> >> >>
> >> >> >> There is at least one other potential code base from a local LDPC
> expert, but it needs some work before release.
> >> >> >>
> >> >> >> Can we get something ready for review by this weekend?
> >> >> >>
> >> >> >> -Michelle W5NYV
> >> >> >>
> >> >> >>
> >> >> > _______________________________________________
> >> >> > Ground-Station mailing list
> >> >> > Ground-Station at lists.openresearch.institute
> >> >> >
> http://lists.openresearch.institute/mailman/listinfo/ground-station
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >>
> >> >> Ahmet Inan
> >> >>
> >> >> Co-founder and CEO of aicodix GmbH
> >> >> https://www.aicodix.de/
> >>
> >>
> >>
> >> --
> >>
> >> Ahmet Inan
> >>
> >> Co-founder and CEO of aicodix GmbH
> >> https://www.aicodix.de/
>
>
>
> --
>
> Ahmet Inan
>
> Co-founder and CEO of aicodix GmbH
> https://www.aicodix.de/
>
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