Hi Ingen,
On 08.06.2016 07:58, ingen wrote:
> I'm a beginner working in Spectrum Sensing. I have been checking the
> code given in the /usrp_spectrum_sense.py/ file in GNU Radio.
> (https://github.com/gnuradio/gnuradio/blob/master/gr-uhd/examples/python/usrp_spectrum_sense.py)
>
> The power calcul
I'm a beginner working in Spectrum Sensing. I have been checking the
code given in the /usrp_spectrum_sense.py/ file in GNU Radio.
(https://github.com/gnuradio/gnuradio/blob/master/gr-uhd/examples/python/usrp_spectrum_sense.py)
The power calculated (at line 303) is in dB as given below :
/power_d
Thanks very mush sir, the program now is working.
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D
Thanks again, I found the problem where it comes, it seems in latest version,
I did not import Blocks in the begin, hence the program seems can find
stream_to_vector function ;)
But a same error comes with fft_vcc which is included in fft,which has
already imported
http://gnuradio.org/doc/doxygen/
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http://github.com/gnuradio/gnuradio
Information like that can always be found on the GNU Radio project
website, http://gnuradio.org.
On 11/12/2014 04:33 PM, Leo Yang wrote:
> When i search the usrp spectrum sensing stuff, this source code is
> first
When i search the usrp spectrum sensing stuff, this source code is first
comes out, and there is some relative explanation of this program, and I
just met gnuradio few weeks ago.
btw, where to find the current version file of gnuradio
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Don't worry, the things you'll have to change to make your code work
with current GNU Radio aren't so big, but I think you will notice
yourself when reading the current version of the file.
However, I'd wonder how you ended up with a link to a version
I do have modified the code, and I made this program based on the tutorial
video in Youtube
https://www.youtube.com/watch?v=DiVvnMJsVBg
which seems like two years ago stuff. I'm not sure whether it fit the latest
version of gnuradio.
I just found there are some head file difference and flow_graph-
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As you can see, yes, it does really matter... that specific commit is
*seven* years old...
Why would you want to use that old version of the file?
On 11/12/2014 03:39 PM, Leo Yang wrote:
> Thanks a lot for ur replay first, i got the source code from
>
Thanks a lot for ur replay first,
i got the source code from
http://gnuradio.org/redmine/projects/gnuradio/repository/revisions/9880e7bb383054aa43681b52ebd33c8fd4cb8fcb/entry/gnuradio-examples/python/usrp/usrp_spectrum_sense.py
and a bit modified has been made. u said "get it somewhere", u mean
That confuses me, too ;)
Is this the usrp_spectrum_sense.py from your own installed GNU Radio or
did you get it somewhere else?
Greetings,
Marcus
On 11/12/2014 03:02 PM, Leo Yang wrote:
> But when i run the other programs which include stream_to_vector function,
> they all works well, it quiet c
But when i run the other programs which include stream_to_vector function,
they all works well, it quiet confused me
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stream to vector is a block that comes with GNU Radio. If python can't
find that, you have not installed GNU Radio correctly.
Best regards,
Marcus
On 11/12/2014 02:51 PM, Leo Yang wrote:
> When I implement the source code " usrp_spectrum_sense.py", the program can
> be compile but when I enter th
When I implement the source code " usrp_spectrum_sense.py", the program can
be compile but when I enter the start, end frequency and fft size it comes
with a error:‘module’ object has no attribute ’stream_to_vector. Has anyone
meet this error before.
and I found some solution : rename the project f
On 02/08/2013 07:26 PM, Biniyam Zewede wrote:
>
>
> Hello everyone, I am trying to sense a transmitted signal using a
> usrp. I typed the following command (/usrp_spectrum_sense.py 440M
> 450M --fft 512) and worked a couple of times. But when I try it
> today, it tells me that there is no devic
Hello everyone,
I am trying to sense a transmitted signal using a usrp. I typed the
following command (/usrp_spectrum_sense.py 440M 450M --fft 512) and worked a
couple of times. But when I try it today, it tells me that there is no device.
(even though I connected a usrp). part of the mess
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