Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-26 Thread Tom Rondeau
On Thu, Nov 24, 2011 at 6:46 PM, Marcus D. Leech wrote: > ** > > Actually, I am not using any sinusoidal function in this measurement. So, > zero values are not valid I think. I am mostly using the noise signal so I > thought there must be a value. > Here is a sample of what I got. > > Any idea w

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-24 Thread Marcus D. Leech
Actually, I am not using any sinusoidal function in this measurement. So, zero values are not valid I think. I am mostly using the noise signal so I thought there must be a value. Here is a sample of what I got. Any idea would be highly appreciated. 0.0001220703-9.1552734375e-05 0.00018310

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-24 Thread Josh Blum
On 11/24/2011 04:08 AM, Hasan Rajib Imam wrote: > Hello Leech, > >> Why do you not think that zero is valid? > >> These I/Q signals are voltage-samples of sinusoidal functions, which > cross zero. > > > Would you please explain this in a little bit more detail. > In fact I need some strong re

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-24 Thread Hasan Rajib Imam
Hello Leech, >Why do you not think that zero is valid? >These I/Q signals are voltage-samples of sinusoidal functions, which cross zero. Would you please explain this in a little bit more detail. In fact I need some strong reason that zero values can be used as value i.e. the signal is not dead

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-24 Thread Marcus D. Leech
On 24/11/11 05:38 AM, Hasan Rajib Imam wrote: > I tried almost all things. I also tried without -s. > Well, the current situation is I am getting the three kinds of IQ data. > 1. both of the IQ valid signal is achieved. > 2. Either I or Q is valid, the other one is a dead signal (showing > '0', zer

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-24 Thread Hasan Rajib Imam
I tried almost all things. I also tried without -s. Well, the current situation is I am getting the three kinds of IQ data. 1. both of the IQ valid signal is achieved. 2. Either I or Q is valid, the other one is a dead signal (showing '0', zero values) 3. Both of them are dead signal ('0' values).

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-22 Thread Tom Rondeau
On Mon, Nov 21, 2011 at 6:31 AM, Hasan Rajib Imam wrote: > Hello Tom & Nick, > > Thanks for your help. I am here to ask another question. > > I am using the following command > sudo python usrp2_rx_cfile.py -f 800M -N 1000 -d 100 -s -v output.dat > > After that, I converted the .dat file using oct

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-21 Thread Hasan Rajib Imam
Hello Tom & Nick, Thanks for your help. I am here to ask another question. I am using the following command sudo python usrp2_rx_cfile.py -f 800M -N 1000 -d 100 -s -v output.dat After that, I converted the .dat file using octave command (read_complex_binary). However, the values I am getting ar

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-18 Thread Tom Rondeau
On Thu, Nov 17, 2011 at 6:41 PM, Hasan Rajib Imam wrote: > Hello Nick, > > Thanks for your reply. > > > "you can use Gnuradio blocks such as the decimating FIR filter to > decimate additionally by however much you like." > > Could you please tell me how can I do the above thing? Actually I am very

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-17 Thread Hasan Rajib Imam
Hello Nick, Thanks for your reply. "you can use Gnuradio blocks such as the decimating FIR filter to decimate additionally by however much you like." Could you please tell me how can I do the above thing? Actually I am very new to gnuradio. I will really appreciate your help. Thanks. On Fri, N

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-17 Thread Nick Foster
On Thu, Nov 17, 2011 at 8:28 AM, Nick Foster wrote: > On Thu, Nov 17, 2011 at 2:33 AM, hasanimam wrote: >> >> Hello all, >> >> I am here once again and would like to bother you a bit. >> I am using the usrp2_rx_cfile.py command to get the IQ data from usrp2. I am >> using the following command >>

Re: [Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-17 Thread Nick Foster
On Thu, Nov 17, 2011 at 2:33 AM, hasanimam wrote: > > Hello all, > > I am here once again and would like to bother you a bit. > I am using the usrp2_rx_cfile.py command to get the IQ data from usrp2. I am > using the following command > > sudo python usrp2_rx_cfile.py -f 800M -d 496 -s -v -N 10 >

[Discuss-gnuradio] usrp2_rx_cfile.py issue

2011-11-17 Thread hasanimam
Hello all, I am here once again and would like to bother you a bit. I am using the usrp2_rx_cfile.py command to get the IQ data from usrp2. I am using the following command sudo python usrp2_rx_cfile.py -f 800M -d 496 -s -v -N 10 /home/gnuradio4/Desktop/observed_data/test.dat And I am getting t