Re: [Discuss-gnuradio] Simulation to compute BER of a Modulator/Demodulator Encoding/Decoding system

[Cinaed Simson]

On 10/25/2018 03:35 PM, Christian BusquielSanz wrote:
>> It runs without error for me under version 3.7.13.4.
>>
>> That is, it generates 3 windows each with a single straight line of
>> amplitude 0.
>>
>> -- Cinaed
>>
> 
> That is not the output I expected
> So I am doing something wrong, since I was using the blocks
> "KISS to PDU"
> "PDU to Tagged Stream"
> to be able to encode the bit stream using CCSDS Reed-Solomon Encoder and 
> Decoder
> So I expected to have the same result as earlier, but just adding a
> codification; to compare the BER of both systems

I have no idea what the KISS to PDU is doing.

> 
> I do not know why I am having an error with my version

Check the README - it said somewhere about 3.7.11 and 3.7.12 - since I'm
using 3.7.13 I ignored it.
> 
> I am trying to update from version 3.7.11 to 3.7.13 from the command
> line, but I am having issues
> I downloaded the gnuradio-3.7.13.4.tar.gz from
> https://github.com/gnuradio/gnuradio/releases/tag/v3.7.13.4
> I extracted the files, and proceeded from the
> ~/GNURadio/gnuradio-3.7.13.4/
> folder to use these commands:
> mkdir build
> cd build
> cmake ../
> make

First, you shouldn't have 2 versions of gnuradio installed at the same
time. You will have problems.

Which OS and what version are you running?

Second, I don't think you need to upgrade.

The error message with "233-32" in it suggests your packet length is to
large for RS(223,255).

> 
> I had an issue and it was because I did not have enough Memory Ram in
> my Virtual Machine when it was building the source code on 61%
> Now, I managed to make it compile and install, but I have this error
> when I try to run the new version:
> "
> Cannot import gnuradio.

If you didn't uninstall the previous version of gnuradio, you need to
back out of the version you're currently installing.

> 
> Is the model path environment variable set correctly?
>     All OS: PYTHONPATH

Type

  echo $PYTHONPATH
  echo $LD_LIBRARY_PATH

to see the values and compare the values to the installation in question.

> 
> Is the library path environment variable set correctly?
>     Linux: LD_LIBRARY_PATH
>     Windows: PATH
>     MacOSX: DYLD_LIBRARY_PATH
> 
> 
> (No module named _runtime_swig)
> "
> So, I cannot try your flowgraph until I manage to fix it and run GNU
> Radio Companion again
> I will keep you informed on my progress
> Thank you so much for taking care about my issue
> 
> 
> Christian Sêngir     Busquiel Sanz
> 
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