Frame Sync Encoder: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
ITU-T J.83B Frame Sync Encoder. Adds a 42-bit (64QAM) or 40-bit (256QAM) frame sync pattern with control word.
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: Scrambled FEC Frame packets of 60 * 128 (64QAM) or 88 * 128 (256QAM) 7-bit symbols.
 
; Output: Scrambled FEC Frame packets of 60 * 128 (64QAM) or 88 * 128 (256QAM) 7-bit symbols with 42-bit (64QAM) or 40-bit (256QAM) FSYNC word.


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


; Param 1 (''R'')
; Constellation
: 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).
: 64QAM or 256QAM constellation.


; Param 2
; Control Word
: blah blah blah
: Convolutional interleaver control word.


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

Latest revision as of 14:18, 11 September 2019

ITU-T J.83B Frame Sync Encoder. Adds a 42-bit (64QAM) or 40-bit (256QAM) frame sync pattern with control word.

Input
Scrambled FEC Frame packets of 60 * 128 (64QAM) or 88 * 128 (256QAM) 7-bit symbols.
Output
Scrambled FEC Frame packets of 60 * 128 (64QAM) or 88 * 128 (256QAM) 7-bit symbols with 42-bit (64QAM) or 40-bit (256QAM) FSYNC word.

Parameters

Constellation
64QAM or 256QAM constellation.
Control Word
Convolutional interleaver control word.

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.

Source Files

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO