CFO Model: Difference between revisions

From GNU Radio
Jump to navigation Jump to search
(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...")
 
(add Example Flowgraph and Output)
 
(One intermediate revision by one other user not shown)
Line 1: Line 1:
[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
This block implements a carrier frequency offset model that can be used to simulate carrier frequency drift typically from mixer LO drift on either transmit or receive hardware.
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.
A clipped gaussian random walk process is used.


== 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'')
; Sample rate Hz (''R''): Sample rate of the input signal in Hz
: 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).


; Param 2
; CFO standard deviation (Hz per sample) (''R''): Desired standard deviation of the random walk process every sample in Hz
: blah blah blah
 
; Max CFO bound Hz (''R''): Maximum carrier frequency deviation in Hz.
 
; Seed : A random number generator seed for the noise source.


== 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 [[Media:Cfo_model.grc]]
 
[[File:Cfo_model_fg.png|800px]]
 
== Example Output ==
 
[[File:Cfo_model_out.png|800px]]


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

Latest revision as of 12:26, 22 December 2021

This block implements a carrier frequency offset model that can be used to simulate carrier frequency drift typically from mixer LO drift on either transmit or receive hardware.

A clipped gaussian random walk process is used.

Parameters

(R): Run-time adjustable

Sample rate Hz (R)
Sample rate of the input signal in Hz
CFO standard deviation (Hz per sample) (R)
Desired standard deviation of the random walk process every sample in Hz
Max CFO bound Hz (R)
Maximum carrier frequency deviation in Hz.
Seed
A random number generator seed for the noise source.

Example Flowgraph

This flowgraph can be found at Media:Cfo_model.grc

Cfo model fg.png

Example Output

Cfo model out.png

Source Files

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO
Retrieved from "https://wiki.gnuradio.org/index.php?title=CFO_Model&oldid=9397"