It would be great to have both. Even if you can't do real-time decoding, you can get pretty far with non-realtime decoding. And at least, we'd have a reference design (even it's too slow). Although of course, I'd very much love to see RFNoC blocks for various other reasons :)
-- M On 06/21/2018 08:30 AM, Michelle Thompson wrote: > "Enthusiastic Yes" on RFNoC. > > Our assumption is that we will need RFNoC. I think we could certainly > use some advice on workflow. > > The LDPC FEC decode effort right now includes attempts with Xilinx SDSoC > to convert functions from the GPU codebase into hardware accelerated > FPGA code. From there, package for RFNoC. > > This plan has advantages and disadvantages. We're here to learn and > contribute whatever we can. > > We have several SDSoC licenses and several full Vivado licenses. We have > at least one X310, several B210s, and a variety of other FPGA dev boards > (Snickerdoodls, Ultra96, etc). > > We have plenty of Plutos and some LimeSDRs. > > -Michelle W5NYV > > > On Wed, Jun 20, 2018 at 3:42 PM, Dan CaJacob <dan.caja...@gmail.com > <mailto:dan.caja...@gmail.com>> wrote: > > I'd suggest incorporating RFNOC at least as an option. I suspect > actual use of DVBS2X might be rather boring if you're stuck on a > processor. > > On Wed, Jun 20, 2018 at 4:38 PM Michelle Thompson > <mountain.miche...@gmail.com <mailto:mountain.miche...@gmail.com>> > wrote: > > Hello everyone, > > GNU Radio Conference is coming up in September. If you haven't > registered and want to go, please do at > https://www.gnuradio.org/grcon-2018/ > <https://www.gnuradio.org/grcon-2018/> > > There's a special event this year called Block Party. > > It's an effort to get DVB-S2 and DVB-S2X receivers in GNU Radio. > > We will have our own room and tables and swag. We will have > docents enthusiasm and test equipment. We're looking for more! > We'll have documentation and refreshments. > > We need blocks! > > Most blocks needed for DVB-S2/X receive do, in some form, > already exist. Some do not. Some just need additional modulation > and codings added to them. > > Receiver design is hard, but breaking it up into small blocks > makes it tractable. > > The DVB protocol documents are all open. There are > implementation guidelines. See https://www.dvb.org/ > > There are several community members that are experts in this > area. There is a team (Phase 4 Ground - find out more at > https://phase4ground.github.io/ > <https://phase4ground.github.io/>) that needs DVB-S2/X to work > in GNU Radio. There is a lot of interest from a variety of other > groups including Libre Space, ARRL, AMSAT, and TAPR. > > If you are able to contribute to this effort, I want to know > about it! I am here to support it. I'd like nothing better than > to complete the Block Party at GNU Radio Conference with > working, tested, documented blocks for a DVB-S2/X receiver. This > contribution makes our open source terrestrial and space radio > designs for Phase 4 Ground possible, and also opens up a lot of > other work. > > The thing that is considered the hardest part is the LDPC FEC > decode. We have an open source implementation that targets GPUs. > We want to take this and get it into RFNoC. If you are working > on this as well, we want to collaborate and support and combine > and promote. > > The GPU implementation (by Charles Brain G4GUO) of LDPC decode > can be found at our repository folder here: > > https://github.com/phase4ground/DVB-receiver/tree/master/G4GUO-LDPC-on-GPU/DVB-S2XTxRx > > <https://github.com/phase4ground/DVB-receiver/tree/master/G4GUO-LDPC-on-GPU/DVB-S2XTxRx> > > Phase 4 Ground is devoted to an open source implementation of > DVB-S2 and DVB-S2X for amateur radio terrestrial and space use. > We are part of Open Research Institute. Learn more about this > non-profit here: https://openresearch.institute/ > <https://openresearch.institute/> > > -Michelle W5NYV > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> > > -- > Very Respectfully, > > Dan CaJacob > > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
