LDPC Encoder: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
Encodes a LDPC (Low-Density Parity-Check) FEC
This is the template for the [[:Category:Block_Docs|"Page-per-block Docs"]].  This first section should describe what the block does and how to use it, using however many paragraphs necessary.  Note that the title of the wiki page should match the block's name in GRC, i.e. the one defined in the block's .grc file.  Look at the [[FFT]] Block for a good example.


As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
; Input: Variable length FEC baseband frames with appended BCH (BCHFEC).
; Output: Normal, medium or short FEC baseband frames with appended LPDC (LDPCFEC).


== Parameters ==
== Parameters ==
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>


; Param 1 (''R'')
; Standard
: Description of parameter, provide any tips or recommended values.  Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).
: DVB standard


; Param 2
; FECFRAME size
: blah blah blah
: FEC frame size
 
; Code rate
: FEC code rate
 
; Constellation
: DVB-S2 constellation


== Example Flowgraph ==
== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
This flowgraph can be found at [https://raw.githubusercontent.com/gnuradio/gnuradio/master/gr-dtv/examples/germany-g1.grc]
 
[[File:Germany_g1_fg.png|799px]]


== Source Files ==
== Source Files ==


; C++ files
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-dtv/lib/dvb/dvb_ldpc_bb_impl.cc dvb_ldpc_bb_impl.cc]


; Header files
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-dtv/lib/dvb/dvb_ldpc_bb_impl.h dvb_ldpc_bb_impl.h]


; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-dtv/include/gnuradio/dtv/dvb_ldpc_bb.h dvb_ldpc_bb.h]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-dtv/grc/dtv_dvb_ldpc_bb.block.yml dtv_dvb_ldpc_bb.block.yml]

Latest revision as of 10:28, 6 June 2022

Encodes a LDPC (Low-Density Parity-Check) FEC

Input
Variable length FEC baseband frames with appended BCH (BCHFEC).
Output
Normal, medium or short FEC baseband frames with appended LPDC (LDPCFEC).

Parameters

Standard
DVB standard
FECFRAME size
FEC frame size
Code rate
FEC code rate
Constellation
DVB-S2 constellation

Example Flowgraph

This flowgraph can be found at [1]

Germany g1 fg.png

Source Files

C++ files
dvb_ldpc_bb_impl.cc
Header files
dvb_ldpc_bb_impl.h
Public header files
dvb_ldpc_bb.h
Block definition
dtv_dvb_ldpc_bb.block.yml
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