Quick correction cd /usr/share/gnuradio/examples/ofdm/ ./benchmark_ofdm_tx.py -h
On Sun, Sep 11, 2011 at 7:26 PM, Tuan (Johnny) Ta <ta.tu...@gmail.com>wrote: > Try this > cd /usr/share/gnuradio/examples/ofdm/ > benchmark_ofdm_tx.py -h > > Don't forget the spaces (just copy & paste should work) > > > On Sun, Sep 11, 2011 at 7:19 PM, waqasme <waqa...@hotmail.com> wrote: > >> >> hello Johnny, >> I tried that locate command and i have found the location of the files >> .here >> is the output: >> hp@ubuntu:~$ cd/usr/local/bin >> bash: cd/usr/local/bin: No such file or directory >> hp@ubuntu:~$ ls >> Desktop Downloads Music Public Templates >> Documents examples.desktop Pictures rx file Videos >> hp@ubuntu:~$ locate benchmark_ofdm_tx.py >> /usr/share/gnuradio/examples/ofdm/benchmark_ofdm_tx.py >> /usr/share/gnuradio/examples/ofdm/benchmark_ofdm_tx.pyc >> hp@ubuntu:~$ locate benchmark_ofdm_rx.py >> /usr/share/gnuradio/examples/ofdm/benchmark_ofdm_rx.py >> /usr/share/gnuradio/examples/ofdm/benchmark_ofdm_rx.pyc >> hp@ubuntu:~$ benchmark_ofdm_tx.py -h >> benchmark_ofdm_tx.py: command not found >> hp@ubuntu:~$ benchmark_ofdm_tx.py-h >> benchmark_ofdm_tx.py-h: command not found >> hp@ubuntu:~$ cd benchmark_ofdm_tx.py-h >> bash: cd: benchmark_ofdm_tx.py-h: No such file or directory >> >> I have used locate comand to find the benchmark files. its in >> /usr/share... >> /usr/share/gnuradio/examples/ofdm/benchmark_ofdm_tx.py >> /usr/share/gnuradio/examples/ofdm/benchmark_ofdm_tx.pyc >> Now as in my previous discussion with sumit, he mentioned after that type >> these comands to show the paramaters >> benchmark_ofdm_tx.py-h but it says comand not found. >> Am i missing something here in the command line? Please advise for further >> process.. >> Thanks.. >> Waq. >> >> >> Tuan Ta-2 wrote: >> > >> > You seem to be quite new to Linux, what do you intend to do for your >> > Master >> > thesis? Gnuradio is not something you can master in a couple of months. >> > >> > To go to a directory, you need to use the 'cd' command. Ie >> > cd /usr/local/bin >> > >> > My benchmark_ofdm code is not in /usr/local/bin so when you get to that >> > folder, do a 'ls' to see if the code is there. If not, you can run >> > locate benchmark_ofdm_tx.py >> > >> > The results will show you where the file is in your system. >> > >> > Good luck, >> > Johnny >> > >> > On Sun, Sep 11, 2011 at 5:55 PM, waqasme <waqa...@hotmail.com> wrote: >> > >> >> >> >> Hi Sumit, >> >> Thanks you so much for ur detailed explanation . i really appriciate >> your >> >> help. >> >> I am following the same steps as you mentioned earlier but iam getiing >> >> this >> >> message when i am entering these comands in terminal. here is the >> >> messages >> >> . >> >> >> >> hp@ubuntu:~$ /usr/local/bin >> >> bash: /usr/local/bin: is a directory >> >> hp@ubuntu:~$ directory/usr/local/bin >> >> bash: directory/usr/local/bin: No such file or directory >> >> hp@ubuntu:~$ /usr/local/bin >> >> bash: /usr/local/bin: is a directory >> >> hp@ubuntu:~$ benchmark_ofdm_tx.py-h >> >> benchmark_ofdm_tx.py-h: command not found >> >> >> >> when i enter this comand i get this result >> >> hp@ubuntu:~$ directory/usr/local/bin >> >> bash: directory/usr/local/bin: No such file or directory >> >> hp@ubuntu:~$ >> >> No such file or directory. how to access that directory? do i need to >> >> run >> >> some other commands before that ? >> >> what could be the problem ? any suggestion ? >> >> >> >> >> >> sumitstop wrote: >> >> > >> >> > go to the directory /usr/local/bin >> >> > there u will find benchmark files for ofdm (both transmission and >> >> > reception) >> >> > u need to type benchmark_ofdm_rx.py -h >> >> > and benchmark_ofdm_tx.py -h >> >> > >> >> > these will show you the parameters u can play with. >> >> > >> >> > after that u can run these files by typing ./benchmark_ofdm_tx.py -f >> >> > <frequency appropriate to ur daughter board> >> >> > and ./benchmark_ofdm_rx.py -f <frequency appropriate to ur daughter >> >> board> >> >> > >> >> > also there may be drift in the center frequency of the daughter board >> >> so >> >> u >> >> > can do one thing. first run the transmitter part and see on the >> >> spectrum >> >> > analyzer for the center frequency of the ofdm signal. >> >> > >> >> > after that run the receiver part with that center frequency specified >> >> in >> >> > the arguments. >> >> > now run the transmitter again with the same frequency. >> >> > >> >> > if u get timeouts then u need to play with the receiver gain and >> >> > transmitter amplitude as well as the receiver center frequency. >> >> > >> >> > u can change the bandwidth of the ofdm signal by changing the no of >> >> > occupied tones or fft length because bw = occupied tones/ fft length >> >> > >> >> > let me know ur results. >> >> > >> >> > Regards >> >> > >> >> > waqasme wrote: >> >> >> >> >> >> hello sumit, >> >> >> yah i have replaced the GMSK modulator and demodulator with OFDM >> >> >> modulator and demaodulator. but i coudlnot find message source , >> >> ,message >> >> >> sink, probe signal and probe avg mag 2 with only input .. the one i >> >> have >> >> >> found has input and output as well for probe avg mag 2 block... i >> >> >> couldnot able to find these blocks as in the simple tranceiver >> diagram >> >> >> example they used these blocks... can you plesase guide me where to >> >> get >> >> >> these blocks? >> >> >> Also you mentioned this command ( benchmark_ofdm.py -h ) is that a >> >> >> command or what? because i have entered this command in terminal >> >> window >> >> >> but it says command not found? and if i type in google to search it >> >> opens >> >> >> a c ++ code ..what i am suppose to do with that. ?? please tell me >> how >> >> to >> >> >> use this benchmark_ofdm.py code.. where to put this code to make the >> >> >> simulation work. i am very new to GNU radio so i have no idea what >> >> >> functions i can play with and how to implement this. please guide me >> >> >> like how to make this OFDM tranmission and reception via USRP. iam >> >> >> using Linux Ubuntu maveric and GNU Radio companion 3.2.2 version... >> I >> >> >> really appriciate your help because i have only few time left for my >> >> >> Masters project. Thanks in advance i am looking forward to hear from >> >> you. >> >> >> >> >> >> Regards, >> >> >> Waq. >> >> >> >> >> >> sumitstop wrote: >> >> >>> >> >> >>> http://pwnhome.files.wordpress.com/2011/04/simple_transceiver1.png >> >> >>> see carefully....... it has a gmsk modulator in the bottom.u can >> make >> >> >>> the bottom modulator part in another pc >> >> >>> >> >> >>> benchmark programs are quite good to start with... >> >> >>> u can type benchmark_ofdm.py -h to see all the parameters u can >> play >> >> >>> with. >> >> >>> >> >> >>> >> >> >>> waqasme wrote: >> >> >>>> >> >> >>>> And sorry to mention in the last mail that i will be suing USRP 1 >> . >> >> >>>> >> >> >>>> waqasme wrote: >> >> >>>>> >> >> >>>>> Hi Sumit, >> >> >>>>> Thank you so much for your quick response. yah i understand what >> >> your >> >> >>>>> saying and i am trying to understand this document but it doesnot >> >> help >> >> >>>>> much . As you mentioned use the same Tranceiver setup and only >> >> replace >> >> >>>>> OFDM blocks with that. My question is in this basic tranciver >> >> diagram >> >> >>>>> the used two UHD's source and sink and in the middle they use >> GMSK >> >> >>>>> Demodulator right. but they didnot use any modulator any where in >> >> the >> >> >>>>> design. Now i am confused what blocks i have to replace with OFDM >> >> >>>>> blocks??? Please try to explain in bit detail so i can design it >> >> >>>>> properly . >> >> >>>>> OR you mentioned other option that use benchmark_OFDM.py file . >> >> >>>>> Somebody already told me about this benchmark file. but its just >> >> C++ >> >> >>>>> code . i am quite new to GNU radio and dont know much about the >> >> >>>>> functions how it works. >> >> >>>>> Please let me know how to use that benchmark_OFDM.py file in >> order >> >> to >> >> >>>>> make the simulation design? do i have to download the file or >> what? >> >> >>>>> how it works ?? let me know if you know about the process how to >> >> >>>>> compile and run that code in GNU radio. >> >> >>>>> >> >> >>>>> Thanks for ur help and support really appriciate that... >> >> >>>>> >> >> >>>>> Regards, >> >> >>>>> >> >> >>>>> Waqas. >> >> >>>>> >> >> >>>>> >> >> >>>>> sumitstop wrote: >> >> >>>>>> >> >> >>>>>> Try to understand these >> >> >>>>>> >> >> >>>>>> >> >> >> http://pwnhome.wordpress.com/2011/04/26/intro-to-gnuradio-and-the-usrp-part-5-simple-transceiver/ >> >> >>>>>> >> >> >>>>>> here u need to put those ofdm blocks .. thats it.... also go >> >> through >> >> >>>>>> some modifications as written in umit, >> >> >>>>>> >> >> >>>>>> >> >> >>>>>> >> >> >> http://pwnhome.wordpress.com/2011/04/19/intro-to-gnuradio-and-the-usrp-part-4/ >> >> >>>>>> >> >> >>>>>> or else work with benchmark_ofdm.py its very easy.. :) >> >> >>>>>> >> >> >>>>>> may i know what daughter boards do you have... >> >> >>>>>> >> >> >>>>>> >> >> >>>>>> >> >> >>>>>> >> >> >>>>>> >> >> >>>>>> waqasme wrote: >> >> >>>>>>> >> >> >>>>>>> >> >> >>>>>>> Hello sumit, >> >> >>>>>>> Thanks for your help i went through that document that you >> >> refered >> >> >>>>>>> to, and i tried to implement that OFDM transmitter part. This >> >> >>>>>>> document only explain about OFDM flow graph or transmitter. Is >> >> there >> >> >>>>>>> any other document or information related to OFDM modulator and >> >> >>>>>>> demodulator (Transceiver)? i haver to implement OFDM >> transmission >> >> >>>>>>> and reception via USRP. i will really appriciate if you can >> help >> >> me >> >> >>>>>>> that or someone else who knows how to implement by using GNU >> >> radio >> >> >>>>>>> companion. >> >> >>>>>>> Thanks in advance. >> >> >>>>>>> Regards, >> >> >>>>>>> Waq. >> >> >>>>>>> >> >> >>>>>>> >> >> >>>>>> >> >> >>>>>> >> >> >>>>> >> >> >>>>> >> >> >>>> >> >> >>>> >> >> >>> >> >> >>> >> >> >> >> >> >> >> >> > >> >> > >> >> >> >> -- >> >> View this message in context: >> >> http://old.nabble.com/OFDM-Implementation-tp32380874p32444101.html >> >> Sent from the GnuRadio mailing list archive at Nabble.com. >> >> >> >> >> >> _______________________________________________ >> >> Discuss-gnuradio mailing list >> >> Discuss-gnuradio@gnu.org >> >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >> > >> > _______________________________________________ >> > Discuss-gnuradio mailing list >> > Discuss-gnuradio@gnu.org >> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> > >> > >> >> -- >> View this message in context: >> http://old.nabble.com/OFDM-Implementation-tp32380874p32444388.html >> Sent from the GnuRadio mailing list archive at Nabble.com. >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> > >
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