Collecting waveform data

GNU Radio
1

Hi, All,

I hope to save the waveform of baseband. Now I use the file
sink of the GRC to save the waveform data, but I am not sure which type
of file
we can save, .txt or .csv? Or some other type of file? We tried .txt and
.csv,
but some part of the file is messy code. Can you give me a example for
extracting and saving waveform of baseband?

Thanks a lot!

Phamy

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2

I hope to save the waveform of baseband. Now I use the file sink of the GRC
to save the waveform data, but I am not sure which type of file we can save,
.txt or .csv? Or some other type of file? We tried .txt and .csv, but some
part of the file is messy code. Can you give me a example for extracting and
saving waveform of baseband?

The signals are stored as interleaved binary samples. If you want to
do something with them outside of gnuradio, the easiest way is to use
octave/matlab :

http://gnuradio.org/trac/wiki/Octave

Otherwise, you can use the scripts provided in that link as a guide to
write your own code to get the samples into whatever system you want
(c++, mathematica, whatever).

Jason