On Tue, Jan 29, 2013 at 02:00:15PM +0800, Sreeraj Rajendran wrote:
> As Josh explained in [1] input can be anything that you can represent as a
> numpy data type.
>
>
> Try using something like
>
> gr.block.__init__(self, name="my block",
>
> in_sig=[numpy.dtype((numpy.float32
Yes, we are using a throttle but when we execute the same python file
we obtain always different outcomes.
We would like to have repeatable experiments.
Any tips?
Thank you
Vanessa
On Mon, Jan 28, 2013 at 5:46 PM, Mike Jameson wrote:
> Hi,
>
> Make sure you are using a 'throttle' block. Have a l
Hi,
The WBX frequency stability is determined by the accuracy of the USRP clock
signal. For example, the USRP2 has a 100MHz internal clock which can be
locked to a 10MHz external source such as GPSDO for better frequency
stability.
See the following url for more info:
http://gnuradio.org/redmin
Hi Vanessa,
If you are using a random number generator, remember to save and re-use the
same 'seed' and also to reset it to the beginning of each run.
Mike
M0MIK
On 29 January 2013 09:47, Vanessa Gardellin wrote:
> Yes, we are using a throttle but when we execute the same python file
> we obtai
Hello,
I am learning PM Demodulation, and someones tell me that the FM Demodulator
in gnuradio can demodulate the PM signals.
I want to get the carrier's frequency offset in PM demodulating, does
gnuradio provide this function?
For example, in my project, I set the frequency of IF signal is 70MHz,
Guys,
i am not able to load gr.basic_block and make signal processing block in
Python. Simplu, there is no binding within gnuradio/gr for that class.
It works perfectly for gr.hier)block2 class.
What might be the problem?
Thanks
On Tue, Jan 29, 2013 at 12:57 PM, Nemanja Savic wrote:
> Hi Mart
Hi,
I wanna synchronize two USRPs to sample signal at the time.And the
synchronization accuracy should be of microseconds without external
clock and cable.This leads me to design a synchronization protocol but
not on PC because of the jitter of ethernet.It seems openBTS add a
timestamp block in FPG
On Tue, Jan 29, 2013 at 6:14 AM, Mohammed Ramadan
wrote:
> i want to make .dat file to use it in file source in GNU-Radio Program .
> like attached one which i downloaded for making AM-Modulattion, i just want
> to make simple .dat file for making guassian signal or any DSP signal. so
> kindly any
On Tue, Jan 29, 2013 at 7:00 AM, Nemanja Savic wrote:
> Guys,
>
> i am not able to load gr.basic_block and make signal processing block in
> Python. Simplu, there is no binding within gnuradio/gr for that class.
> It works perfectly for gr.hier)block2 class.
> What might be the problem?
>
> Thank
We do not have any random generator in the code that we wrote.
We generate 100 packets always of the same size and containing all "a".
Could it be something that depends on the scheduler or on how threads
are handled?
On Tue, Jan 29, 2013 at 12:09 PM, Mike Jameson wrote:
> Hi Vanessa,
>
> If you
Just calculate samples in whatever way you want and store them to files,
using python, C, or any other language.
Here is part of my code for making samples of complex sin wave in python:
for i in range(n_samples):
> sine[i] = math.sin(2*math.pi*i/n_samples)
> cosine[i] = math.cos(2*math.pi
On Tue, Jan 29, 2013 at 7:40 AM, Nemanja Savic wrote:
> I'm not sure what you mean by "load gr.basic_block." Do you mean inherit
>> from?
>
>
> I want to make my block which very similar to packet deframer. Here is th
> code:
>
> class packet_tst(gr.hier_block2):
>> def __init__(self, access_
I was interested, but really wasn't able to make the time commitment work out.
With that said, if anyone refrained from entering a team because they were in
desperate need of a half-committed member who lived near Arlington and could
attend the final challenge I'm open to joining up ;)
Date:
OK, I'll try to explain everything.
I want to design block responsible for decoding messages, calculating crc,
etc ... In order to do that I investigated packet_demod_base block from
main gnuradio branch,
and also packet_deframer from gr_extras group of blocks. I realized that
such kind of blocks
On 01/29/2013 04:47 AM, Vanessa Gardellin wrote:
Yes, we are using a throttle but when we execute the same python file
we obtain always different outcomes.
We would like to have repeatable experiments.
Any tips?
Thank you
Vanessa
Are you using a channel model in the middle of your simulation?
Is this half-committed member ready to become a team lead for two Indian
graduate students? Then we would also like to give it a shot.
---
Regards
Sreeraj Rajendran
http://home.iitb.ac.in/~rsreeraj
From: "Uher, Jason J."
To: "discuss-gnuradio@gnu.org"
Se
Hi list,
I notice that after running any application (for example uhd_fft), the USRP
continues to send a lot of packets to my machine. Is there something I am
missing ? Maybe the application is not closing correctly and stopping the
USRP from sending packets.
Thanks.
--
View this message in c
On 01/29/2013 10:25 AM, maiconkist wrote:
> Hi list,
>
> I notice that after running any application (for example uhd_fft), the USRP
> continues to send a lot of packets to my machine. Is there something I am
> missing ? Maybe the application is not closing correctly and stopping the
> USRP from
Hi
When I try to establish the duplex comunication between two USRPs, I found
that if I put the code A infront of code B, only the transmitter works, but
if I put code B infront of code A, only receiver works.
Could anyone tells me the reason?
Thanks a lot!
code A:
self.source = uhd_rece
Hello list,
We had a group of students working with two of our USRP N210s, and they
had a problem receiving.. anything. The USRP, however, still transmits.
I have verified that the USRP indeed doesn't receive a signal by
attaching an FFT to the output of a UHD:USRP Source and transmitting
b
I configured gr 3.6.4 to install in my prefix /opt/usr, and I caught the
installer putting the conf stuff in /usr/local anyways. I wasnt sure if
this was the intention, since there was some ramblings about FHS, and
/etc stuff
cmake ~/src/gnuradio/ -DCMAKE_BUILD_TYPE=Release
-DCMAKE_INSTALL_PREFIX=
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