Log Power FFT: 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...")
 
No edit summary
Line 1: Line 1:
[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
Create a log10(abs(fft)) stream chain, with real or complex input.
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.


== 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'')
; FFT Size
: 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).
: Number of FFT bins
 
; Reference Scale
: Sets 0 dB value input amplitude
 
; Frame Rate
: Output frame rate
 
; Average (''R'')
: Whether to average [True, False]


; Param 2
; Average Alpha (''R'')
: blah blah blah
: FFT averaging (over time) constant [0.0-1.0]


== Example Flowgraph ==
== Example Flowgraph ==
Line 20: Line 26:
== Source Files ==
== Source Files ==


; C++ files
; Python Source
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/267d669eb21c514c18a6ee979f5cf247d251f1ad/gr-fft/python/fft/logpwrfft.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/blob/267d669eb21c514c18a6ee979f5cf247d251f1ad/gr-fft/grc/fft_logpwrfft_x.block.yml Here]

Revision as of 04:42, 3 August 2019

Create a log10(abs(fft)) stream chain, with real or complex input.

Parameters

(R): Run-time adjustable

FFT Size
Number of FFT bins
Reference Scale
Sets 0 dB value input amplitude
Frame Rate
Output frame rate
Average (R)
Whether to average [True, False]
Average Alpha (R)
FFT averaging (over time) constant [0.0-1.0]

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 Source
Here
Block definition
Here
Retrieved from "https://wiki.gnuradio.org/index.php?title=Log_Power_FFT&oldid=5870"