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[Discuss-gnuradio] Using benchmark_ofdm.py & gr_plot_ofdm.py
From: |
Jérémy Skelton |
Subject: |
[Discuss-gnuradio] Using benchmark_ofdm.py & gr_plot_ofdm.py |
Date: |
Wed, 4 Feb 2009 19:26:33 +0100 |
Hi,
I was taking a look at the ofdm files by using first the benchmark
with log enabled and then the plot.
First I copied ofdm_frame_sink_c.dat to ofdm_frame_acq_c.dat because
this last file was missing.
I would like to have some comments about the resulting plot I had :
http://www.skelton.eu.org/Image%201.png
What I mainly don't understand is why the red and the blue parts are
not the same. According to the python file, it should be the same as
acq_data and derot_data seem to be processed in parallel with the same
set of functions and are actually from the same data file.
Secondly, I would like to know exactly what is the meaning of the
Symbol number on top of the picture. In my mind, a symbol should be
one element from the constellation.
Then, why is the time scale going to at least 200s as I only ran the
simulation for a few secondes ?
Finally, how can I generate correctly the ofdm_frame_acq_c.dat file ?
Thanks,
Jérémy
- [Discuss-gnuradio] Using benchmark_ofdm.py & gr_plot_ofdm.py,
Jérémy Skelton <=