AM Demod: Difference between revisions

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(Created page with "Category:Block Docs Category:Stub Docs This is the template for the "Page-per-block Docs". This first section should describe what the block...")
 
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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].
 
Note: The AM Demod block is the same as a Complex to Mag block feeding an Add Const block feeding a Low Pass Filter. See [[Complex_to_Mag#Example_Flowgraph]].


== 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
; Audio decimation
: Input to output decimation rate
; Audio pass
: Audio low pass filter passband frequency
; Audio stop
: Audio low pass filter stop frequency


; Param 2
== Example Flowgraph ==
: blah blah blah


== Example Flowgraph ==
This flowgraph shows the use of an AM Demod block to implement an AM broadcast receiver.


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.
[[File:FunCube_AM.png|800px]]


== 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]

Latest revision as of 00:15, 27 October 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].

Note: The AM Demod block is the same as a Complex to Mag block feeding an Add Const block feeding a Low Pass Filter. See Complex_to_Mag#Example_Flowgraph.

Parameters

(R): Run-time adjustable

Channel rate
Incoming sample rate of the AM baseband
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

This flowgraph shows the use of an AM Demod block to implement an AM broadcast receiver.

FunCube AM.png

Source Files

Python file
Here
Block definition
TODO
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