Hi folks,
I managed to get pybombs to install and build on my Fedora 19 system
with hackrf and gr-osmosdr.
However, when I run with an osmocom source and the HackRF connected I
get the following error. Has anyone seen this? What causes it?
Executing: "/home/rsharpe/pybombs/top_block.py"
Traceba
GNU Radio releases 3.7.5 and 3.7.4.1 are available for download:
http://gnuradio.org/releases/gnuradio/gnuradio-3.7.4.1.tar.gz
http://gnuradio.org/releases/gnuradio/gnuradio-3.7.5.tar.gz
GNU Radio Live DVD 3.7.5:
http://gnuradio.org/releases/gnuradio/iso/ubuntu-14.04.1-desktop-amd64-gnuradio.tor
On Fri, Sep 5, 2014 at 1:39 PM, Richard Sharpe
wrote:
> Hi folks,
>
> I am trying to build on CentOS 6.5.
>
> I cloned the repos, and then issued cd pybombs; ./pybombs install
> hackrf and it eventually failed with:
>
> --
> Current step: (hackrf :: configure)
> configure
> (' \n
Hi folks,
I am trying to build on CentOS 6.5.
I cloned the repos, and then issued cd pybombs; ./pybombs install
hackrf and it eventually failed with:
--
Current step: (hackrf :: configure)
configure
(' \nCC=gcc CXX=g++ cmake .. -DCMAKE_BUILD_TYPE=Debug
-DCMAKE_INSTALL_PREFIX=
Hi Tiankun,
To add on to what Martin said: In DFE, the channel state H_I on subcarrier
i is updated everytime it receives a new symbol on that subcarrier. It
doesn't really care of that symbol is a pilot or a data symbol. If it is a
pilot, the channel estimate H_i is trivially calculated and updat
I'll flip you $0.01; I found the new tutorials to be really helpful, and this
one specifically shows how to write a block that inserts stream tags (the
preceding tutorial shows how to write a block):
http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_Programming_Topics
Although ad
It uses them. It will reset the channel state estimate every time it
encounters a pilot symbol. See eg the qa codes for examples. If you want to
make use of them in your modem, you need to put pilots on the same carriers
as the data.
M
On 5 Sep 2014 11:01, "Tiankun Hu" wrote:
> Hi Aditya,
> Than
Well, as Martin said, if you want to avoid resending your own packets
you will need to be able to keep track of which packet you already sent;
you can also "numb" the receiver for the duration of your TX. None of
this hasn't, to my knowledge, been with the GNU Radio examples, and
since it involves
Dear Martin,
yes, absolutely, idea is to do signal repeater.
Whats the best solution can be ?
- Original Message -
From: "Martin Braun"
To: "Yury TSAREGORODTSEV"
Cc: discuss-gnuradio@gnu.org
Sent: Friday, September 5, 2014 5:31:05 PM
Subject: Re: [Discuss-gnuradio] full duple
I haven't used those packages, but is there a gnuradio-dev, and did you
install it? And which version of gnuradio do you have?
M
On 5 Sep 2014 17:21, "Ben Hiett" wrote:
> i'm trying to build the gnuradio block from osmocon so i can use an rtlsdr
> with gnuradio
>
> have installed gnuradio for ub
Do you mean the fact that you'll be receiving your own packets? There's
several ways to do this, e.g. You can catch your own packets in the mac
layer.
M
On 5 Sep 2014 17:27, "TSAREGORODTSEV, Yury"
wrote:
> Hello,
> can anyone suggest how to prevent infinity loop in case of full duplex
> RX/TX on
Hello,
can anyone suggest how to prevent infinity loop in case of full duplex RX/TX on
same frequency ?
Any ideas?
GRC example:
UHD source -> GMSK DEMOD -> packet decoder -> packet encoder -> GMSK MOD -> UHD
SINK
but in this case of course its gonna be infinity loop,
any suggestion how to
This then turns into a discussion about tagging during flow-graph
operation. A subject I'm not that familiar with, so perhaps someone
else can insert their $0.02.
On 2014-09-05 11:12, Sumit Saluja wrote:
> Thanks mleech,
>
> I used Metadata but I am able to add date once at starting of
Hi Sumit,
that's kind of redundant -- you know the start time and you know the
constant sampling rate, so you know the time of each sample in your
file. Anyway, the metadata sink saves every tag you specify, so just
write a block that calculates the time to a given sample number, and
occasionally
i'm trying to build the gnuradio block from osmocon so i can use an rtlsdr with
gnuradio
have installed gnuradio for ubuntu 14.04 using apt-get
then when i try and build gr-osmosdr i get the following:
-- Build type not specified: defaulting to release.
-- Extracting version information from gi
Thanks mleech,
I used Metadata but I am able to add date once at starting of Sinking but not
able to add during whole process.
Sumit Saluja
From: mle...@ripnet.com [mailto:mle...@ripnet.com]
Sent: Friday, September 05, 2014 11:10 AM
To: Sumit Saluja
Cc: discuss-gnuradio@gnu.org; discuss-gnuradi
Hello Mostafa,
I read this article and think you can find it interesting:
http://academic.csuohio.edu/yuc/papers/PID2932179.pdf
Greetings
Harold Daniel Moreno Urbina
2014-09-05 4:14 GMT-06:00 Mostafa Alizadeh :
> Hi guys,
>
> In simulation, sometime we need to measure the latency of a packet i
There's the metadata file sink. You could insert date/time tags.
Or, if the rates are quite low (a few Hz at most), you could use a
probe, and have a poller function that grabs data from the probe, and
formats it all pretty like. That's how simple_ra writes its data log
files
On 2014-
Dear All
I am trying one experiment but not able to complete it on Gnu Radio. I am
reading Data from hardware and sinking with file. Now I am trying that at with
every sample data and date and time will be sinked in a file. Is there any
option to do so.
Thanks
[Description: cid:image
On Fri, Sep 5, 2014 at 12:34 AM, sammy zada wrote:
> Hi everyone,
>
> Thanx for the detail explanation, i have followed some of your advice on
> the email above. I use default for the option, these is the results:
> ...
> Run VOLK Profile to choose fastest kernels[Y]/N?
> Submit anonymous VOLK pe
The source is the omsosdr-rtl block and the filter is the FIR. The blocks in
the modem are OOT modules. Both flow graphs work independently, but when I try
to dynamically switch between the modems, I get the same error you are seeing.
I do have a buffer requirement change on the output of the FI
Hi Mostafa,
I never tire to say that such measurements are often meaningless, as a)
on general purpose processors and operating systems *anything* can
happen, stalling your flow graph, and b) as GNU Radio scales well on
multiprocessor platforms and algorithms are steadily optimized, you can
expect
Hi guys,
In simulation, sometime we need to measure the latency of a packet in terms
of the duration is needed to perform some certain signal processing on the
packet. Assume that we have a source which generates packets with specific
lengths. I want to know how long does it take for the packet to
I believe that the OFDM tunnel example automatically switches the TX/RX
port to receive when packets are not being transmitted so this should be
compatible with your XCVR2450 without modification.
Mike
--
Mike Jameson M0MIK BSc MIET
Ettus Research Technical Support
Email: supp...@ettus.com
Web: h
Hi Aditya,
Thanks your time!
But how to use pilotes symbol's channel state to update data symbol's?
"ofdm_equalizer_simpledfe" is so simple, so it didn't realize that, right?
Is there any example or paper can be for reference?
Thanks
Tiankun
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