Ofdm_txrx.py

musicdenotation · April 24, 2014, 4:43am

I run the file “ofdm_txrx.py” from terminal using command
./ofdm_txrx.py
But I got errors !!! why ?

Thanks in advance ! Here is the output on terminal:

./ofdm_txrx_me.py: line 26:
OFDM Transmitter / Receiver hier blocks.

For simple configurations, no need to connect all the relevant OFDM
blocks
to form an OFDM Tx/Rx–simply use these.
: No such file or directory
./ofdm_txrx_me.py: line 31: import: command not found
from: can’t read /var/mail/gnuradio
./ofdm_txrx_me.py: line 33: import: command not found
from: can’t read /var/mail/utils
./ofdm_txrx_me.py: line 36: try:: command not found
from: can’t read /var/mail/gnuradio
from: can’t read /var/mail/gnuradio
from: can’t read /var/mail/gnuradio
./ofdm_txrx_me.py: line 41: except: command not found
./ofdm_txrx_me.py: line 43: import: command not found
./ofdm_txrx_me.py: line 44: import: command not found
./ofdm_txrx_me.py: line 45: import: command not found
./ofdm_txrx_me.py: line 47: _def_fft_len: command not found
./ofdm_txrx_me.py: line 48: _def_cp_len: command not found
./ofdm_txrx_me.py: line 49: _def_frame_length_tag_key: command not found
./ofdm_txrx_me.py: line 50: _def_packet_length_tag_key: command not
found
./ofdm_txrx_me.py: line 51: _def_packet_num_tag_key: command not found
./ofdm_txrx_me.py: line 53: syntax error near unexpected token (' ./ofdm_txrx_me.py: line 53:_def_occupied_carriers = (range(-26, -21) +
range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22,
27),)’

Sara_ChSSrif · April 25, 2014, 3:36am

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Hi Sara,

this is a python module, not an executable file.
It seems like you tried to run it, and since it does not specify
otherwise, your shell tried to treat it as a shell script. Won’t work.

That file contains hierarchical blocks, which you can use in a flow
graph, not on their own.

I still get the feeling that you’re jumping around in GNU Radio code
without really knowing what you’re looking at. I suggest doing the
introductory guides from the wiki; please go to http://gnuradio.org
and read the “How do I use GNU Radio?” page and at least the first two
“beginner level tutorials” from
http://gnuradio.org/redmine/projects/gnuradio/wiki/Tutorials page.

Greetings,
Marcus

On 24.04.2014 04:42, Sara C. wrote:

blocks to form an OFDM Tx/Rx–simply use these. : No such file or
./ofdm_txrx_me.py: line 48: _def_cp_len: command not found
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Sara_ChSSrif · April 25, 2014, 5:31am

On Wed, Apr 23, 2014 at 10:42 PM, Sara C.
[email protected]wrote:

to form an OFDM Tx/Rx–simply use these.
./ofdm_txrx_me.py: line 43: import: command not found
27),)’

It looks like it’s not being recognized by your shell as a Python
program.
Try running as:

$ python ofdm_txrx.py

Tom

Sara_ChSSrif · April 25, 2014, 6:39am