Difference between revisions of "Constellation Rect. Object"

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; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/0fa281fd7369348dbdeadcecfebb20b73082e93e/gr-digital/include/gnuradio/digital/constellation.h Here]
; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio/blob/0fa281fd7369348dbdeadcecfebb20b73082e93e/gr-digital/grc/digital_constellation_rect.block.yml Here]
: [https://github.com/gnuradio/gnuradio/blob/0fa281fd7369348dbdeadcecfebb20b73082e93e/gr-digital/grc/digital_constellation_rect.block.yml Here]

Revision as of 04:10, 3 August 2019

A version of Constellation Object specific to rectangular constellations. See Constellation Object for more usage info.


Symbol Map
List of alphabet symbols (before applying any differential coding) (order of list matches Constellation Points)
Constellation Points
List of constellation points (order of list matches Symbol Map)
Rotational Symmetry
Number of rotations around unit circle that have the same representation.
Real Sectors
Number of sectors the real axis is split in to.
Imaginary Sectors
Number of sectors the imag axis is split in to.
Width Real Sectors
Width of each real sector to calculate decision boundaries.
Width Imaginary Sectors
Width of each imag sector to calculate decision boundaries.
Soft Bits Precision
The number of bits of precision used when generating the LUT.
Soft Decisions LUT
The soft decision LUT as a vector of tuples (vectors in C++) of soft decisions. Each element of the LUT is a vector of k-bit floats (where there are k bits/sample in the constellation).

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
see middle of this page
Header files
Public header files
Block definition