GMSK Mod: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
Hierarchical block for Gaussian Minimum Shift Key (GMSK) modulation.
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.
The input is a byte stream (unsigned char with packed bits)
 
The output is the complex modulated signal at baseband.


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


; Param 1 (''R'')
; Samples/Symbol
: 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).
: samples per baud >= 2
 
; BT
: Gaussian filter bandwidth * symbol time
 
; Verbose
: Print information about modulator?


; Param 2
; Log
: blah blah blah
: Print modulation data to files?


== 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://github.com/gnuradio/gnuradio/blob/master/gr-channels/examples/demo_gmsk.grc]
 
[[File:Demo_gmsk_fg.png|799px]]


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


; C++ files
; Python files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-digital/python/digital/gmsk.py]
 
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
 
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-digital/grc/digital_gmsk_mod.block.yml]

Revision as of 21:47, 7 December 2020

Hierarchical block for Gaussian Minimum Shift Key (GMSK) modulation.

The input is a byte stream (unsigned char with packed bits)

The output is the complex modulated signal at baseband.

Parameters

Samples/Symbol
samples per baud >= 2
BT
Gaussian filter bandwidth * symbol time
Verbose
Print information about modulator?
Log
Print modulation data to files?

Example Flowgraph

This flowgraph can be found at [1]

Demo gmsk fg.png

Source Files

Python files
[2]
Block definition
[3]