HW Impairments: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
Hierarchical block that combines [[Phase Noise Generator]], [[IQ Imbalance Generator]], [[Second Order Distortion]], [[Third Order Distortion]], IQ offset and frequency offset
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.
Here is the flowgraph corresponding to the implementation (without the parameters)
 
[[File:HW-impairements-hier-block.png|600px]]


== 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'')
; Phase Noise Mag. (''R'')
: 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).
: Magnitude given to the [[Phase Noise Generator]]. (Alpha is set to 0.01)
 
; IQ Mag. Imbalance (''R'')
: Magnitude parameter for the [[IQ Imbalance Generator]].
 
; IQ Phase. Imbalance (''R'')
: Phase parameter for the [[IQ Imbalance Generator]]. (The mode is set to Receiver)
 
; Quadrature Offset (''R'')
: Offset added to the Q channel.
 
; Inphase Offset (''R'')
: Offset added to the I channel.
 
; Frequency Offset (''R'')
: Frequency offset to add.
: The signal source used for frequency offset is set to work at 1 sample per second. This probably need to be taken into account.
 
; Second Order Distortion (''R'')
: Parameter given to the [[Second Order Distortion]] block.
 
; Third Order Distortion (''R'')
: Parameter given to the [[Third Order Distortion]] block.


; Param 2
: blah blah blah


== 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 file
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-channels/python/channels/impairments.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-channels/grc/channels_impairments.block.yml]

Latest revision as of 21:45, 7 December 2020

Hierarchical block that combines Phase Noise Generator, IQ Imbalance Generator, Second Order Distortion, Third Order Distortion, IQ offset and frequency offset

Here is the flowgraph corresponding to the implementation (without the parameters)

HW-impairements-hier-block.png

Parameters

(R): Run-time adjustable

Phase Noise Mag. (R)
Magnitude given to the Phase Noise Generator. (Alpha is set to 0.01)
IQ Mag. Imbalance (R)
Magnitude parameter for the IQ Imbalance Generator.
IQ Phase. Imbalance (R)
Phase parameter for the IQ Imbalance Generator. (The mode is set to Receiver)
Quadrature Offset (R)
Offset added to the Q channel.
Inphase Offset (R)
Offset added to the I channel.
Frequency Offset (R)
Frequency offset to add.
The signal source used for frequency offset is set to work at 1 sample per second. This probably need to be taken into account.
Second Order Distortion (R)
Parameter given to the Second Order Distortion block.
Third Order Distortion (R)
Parameter given to the Third Order Distortion block.


Example Flowgraph

This flowgraph can be found at [1]

Demo gmsk fg.png

Source Files

Python file
[2]
Block definition
[3]
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