Re: [Discuss-gnuradio] File usrp_rx_cfile.py

[Dan Halperin]

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The data is packed binary data. Each complex samples is stored as 8
bytes, 4 bytes I as a float and 4 bytes Q. You need to use a binary
program to read these files. See read_complex_binary.m for MATLAB code
and the exact same syscalls translate directory into a C program to do
the same thing.

- -Dan

David Lindberg wrote:
> Hello,
> 
> 
> I e-mailed this list last week and have had some issues trying to get the
> file usrp_rx_cfile.py to give me a proper output.  The readme file says
> that
> the output is "single precision complex float values".  Honestly I do not
> know how to convert this data to a proper text that I can analyze.  The
> output file that is written is just a bunch of 'NUL' values when read in
> Notepad++.  When I read it in regular notepad, it is a similar garbled
> message.  The file can be found at this link:
> 
> <http://www.prism.gatech.edu/~gtg640r/data.dat>
> 
> 
> Please let me know if you have any information in reading this output.
> 
> 
> David Lindberg
> 
> 
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