AM Demod: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
Generalized AM demodulation hierarchical block with audio filtering.
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.
This block demodulates a band-limited, complex down-converted AM channel into the the original baseband signal, applying low pass filtering to the audio output. It produces a float stream in the range [-1.0, +1.0].


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


; Param 1 (''R'')
; Channel rate
: 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).
: Incoming sample rate of the AM baseband (integer) <- There is a mismatch bewteen GRC definition and code documentation about int or float, please check that.
 
; Audio decimation
; Param 2
: Input to output decimation rate
: blah blah blah
; Audio pass
: Audio low pass filter passband frequency
; Audio stop
: Audio low pass filter stop frequency


== Example Flowgraph ==
== Example Flowgraph ==
Line 20: Line 22:
== Source Files ==
== Source Files ==


; C++ files
; Python file
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-analog/python/analog/am_demod.py Here]
 
; 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 TODO]

Revision as of 16:35, 24 July 2019

Generalized AM demodulation hierarchical block with audio filtering.

This block demodulates a band-limited, complex down-converted AM channel into the the original baseband signal, applying low pass filtering to the audio output. It produces a float stream in the range [-1.0, +1.0].

Parameters

(R): Run-time adjustable

Channel rate
Incoming sample rate of the AM baseband (integer) <- There is a mismatch bewteen GRC definition and code documentation about int or float, please check that.
Audio decimation
Input to output decimation rate
Audio pass
Audio low pass filter passband frequency
Audio stop
Audio low pass filter stop frequency

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

Python file
Here
Block definition
TODO
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