OFDM Symbol Acquisition: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
OFDM symbol acquisition.
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.
       
; Data input format
: complex(real(float), imag(float)).  
       
; Data output format
: complex(real(float), imag(float)).


As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
== Parameters ==
 
; FFT Length
: FFT size, 2048 or 8192.


== Parameters ==
; Occupied Tones
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
: Active OFDM carriers, 1705 or 6817.


; Param 1 (''R'')
; Cyclic prefix length
: 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).
: Length of Cyclic Prefix (FFT size / 32, 16, 8 or 4).


; Param 2
; SNR
: blah blah blah
: Signal to Noise Ratio.


== 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-dtv/examples/dvbt_rx_8k.grc].
 
[[File:Dvbt_rx_8k_fg.png|800px]]


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


; C++ files
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/lib/dvbt/dvbt_ofdm_sym_acquisition_impl.cc]


; Header files
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/lib/dvbt/dvbt_ofdm_sym_acquisition_impl.h]


; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/include/gnuradio/dtv/dvbt_ofdm_sym_acquisition.h]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/grc/dtv_dvbt_ofdm_sym_acquisition.block.yml]

Latest revision as of 13:20, 30 November 2020

OFDM symbol acquisition.

Data input format
complex(real(float), imag(float)).
Data output format
complex(real(float), imag(float)).

Parameters

FFT Length
FFT size, 2048 or 8192.
Occupied Tones
Active OFDM carriers, 1705 or 6817.
Cyclic prefix length
Length of Cyclic Prefix (FFT size / 32, 16, 8 or 4).
SNR
Signal to Noise Ratio.

Example Flowgraph

This flowgraph can be found at [1].

Dvbt rx 8k fg.png

Source Files

C++ files
[2]
Header files
[3]
Public header files
[4]
Block definition
[5]
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