Can usrp_rx_cfile.py be used to collect ofdm signal?

GNU Radio
1

Hello,
Does anyone know if use ‘usrp_rx_cfile.py’ to collect ofdm signal
will
be any problem? In other words, after collection, is it possible to
decode
these signals?

Thanks,
Bin Zan

2

Hi,

the program ‘usrp_rx_cfile.py’ only stores the received samples in a
binary
file. If you want to check the received data you can import the samples
in
Octave or Matlab using the file read_complex_binary.m located in
gnuradio-
core/src/utils/read_complex_binary.m or use it for further processing.

Cheers,

Christoph

3

Thanks Christoph, however my major concern is if it can be used to
collect
OFDM signal. Say if it is a ofdm signal flow come from several
subcarriers,
will the usrp_rx_cfile.py still effective?

Thanks
Bin

On Wed, Sep 30, 2009 at 5:28 PM, Christoph T. <

4 
Does anyone know if use 'usrp_rx_cfile.py' to collect ofdm signal

will
be any problem? In other words, after collection, is it possible to
decode
these signals?

‘usrp_rx_cfile.py’ will collect everything the USRP sees into a file
that can be played back later. If you are currently using working
code with the USRP, then you should be able to capture the output from
your transmitting USRP into a file with rx_cfile.

Assuming that you use the same parameters to initialize the USRP, you
can then later attach a file source to your flowgraph rather than a
USRP receiver and play with your code using the recorded data rather
than the live data.

Jason