Hi Tom, Matt
replied inline:
On Wed, Feb 17, 2010 at 10:26 AM, Tom Rondeau wrote:
> On Tue, Feb 16, 2010 at 5:45 PM, Srinivas wrote:
> > Matt,
> >
> > Thanks for verifying the data rate calculation!
> >
> > I tried the other solutions that you suggested, namely,
> >
> > - increasing the data ra
Hi Eric,
You can find the example here:
http://cs.ucsb.edu/~veljko/downloads/tx_ofdm_flex.tar.gz
The example (benchmark_ofdm_tx_new.py) changes the number of carriers
(from 50, to 100, 150, and so on) after every 300 packets sent. It can
use either set_ofdm_parameters or set_ofdm_parameters_high,
Hi,
For a fft-length 64, occupied-tones 32 ofdm mapping will actually use
subcarrier (16-30) and (33-47) according to the code. However, when I plot
the results from ofdm_receiver-fft_out_c.dat, I find it will have a peak at
subcarrier 33 always, and the occupied tone seems start from 16 and en
On Mon, Feb 15, 2010 at 10:51:05AM -0800, Veljko Pejovic wrote:
> Update:
> I moved the reconfiguration one level up, to transmit_path.py and it
> works for high interpolation values (low bit rate), but still hangs
> for the low ones.
>
> I'm quite puzzled now, it seems that lock() - unlock() gets
On Wed, Feb 17, 2010 at 10:04:47AM +0100, Fabrizio Tappero wrote:
> Hello,
> I am new in the GNU Radio community and I am looking for some help to
> get started.
>
> I have installed Linux Ubuntu 9.10 (Karmic Koala) as Virtual Box host
> in OS X 10.5.8.
> following the "Getting Started" indicatio
On Tue, Feb 16, 2010 at 12:25:55PM -0500, Yan Nie wrote:
> Hi all,
>
> I'm wondering the directory of output.dat, which is the receiving
> data file of gr-sounder? Thanks in advance.
>
> Regards,
> Yan
The file will be created using whatever name you supply on the command
line with the -F optio
I'm not intimately familiar with GNU radio hardware and the experts here will
hopefully correct me if needed, but I
think you would face these issues:
1) The default FPGA logic doesn't offer a demodulation enable/disable, so you'd
have to make some logic changes and
rebuild.
no changes are
On 02/17/2010 09:38 AM, John Carlson wrote:
I have a USRP2 and I'm interested in doing an experiment where I'd like
to simply use the USRP2 as an A/D and D/A device, essentially disabling
the RF tuning portions. The signal I'm trying to digitize is a stream
of digital TTL pulses. I assume that
John-
> I have a USRP2 and I'm interested in doing an experiment where I'd like to
> simply use the USRP2 as an A/D and D/A device, essentially disabling the RF
> tuning portions. The signal I'm trying to digitize is a stream of digital
> TTL pulses. I assume that the best way to interface to th
On Mon, Feb 15, 2010 at 6:59 PM, Tracey Bernath wrote:
> Nope, Nope, and Nope. I was rather shocked, things never go that well for me
> :)
>
> I pulled the u2_rev3 and just resolved my way through the source tree. I was
> not expecting it to generate cleanly. I did regenerate two cores as part of
I have a USRP2 and I'm interested in doing an experiment where I'd like to
simply use the USRP2 as an A/D and D/A device, essentially disabling the RF
tuning portions. The signal I'm trying to digitize is a stream of digital
TTL pulses. I assume that the best way to interface to this is through t
On Wed, Feb 17, 2010 at 10:06 AM, nadia raj wrote:
> hi,
> how do we select a subdev in blks2.ofdm_mod, for a scenerio where we have
> two daughterborads on one usrp.
> Regards,
> Nadia
You wouldn't do it in blks2.ofdm_mod. Look at the ofdm examples folder
for benchmark_ofdm_tx.py. The function _
hi,
how do we select a subdev in blks2.ofdm_mod, for a scenerio where we have two
daughterborads on one usrp.
Regards,
Nadia
_
Hotmail: Trusted email with Microsoft’s powerful SPAM protectio
On Tue, Feb 16, 2010 at 5:45 PM, Srinivas wrote:
> Matt,
>
> Thanks for verifying the data rate calculation!
>
> I tried the other solutions that you suggested, namely,
>
> - increasing the data rate by a factor of 2 or 4
> It works.
>
> - modifying the OFDM code to widen the search range - How do
Hi Matthias,
I had the problem before. You could solve it if you include in
gc_aligned_alloc.cc the stdio.h header.
There is an other bug in gc_jd_stack.c at line 30/31. You have to
remove the end of line in this case...
good luck
Thilo
2010/2/17 Matthias Kalthoff :
> Hi now I have another err
Hi now I have another error building gcell on PS3 under Xubuntu 9.10.
make all-recursive
make[1]: Betrete Verzeichnis '/home/hbo/gnuradio-3.2.2'
Making all in config
make[2]: Betrete Verzeichnis '/home/hbo/gnuradio-3.2.2/config'
make[2]: Für das Ziel »all« ist nichts zu tun.
make[2]: Verlasse Ver
Hello All,
Now I'm trying to modify benchmark_tx.py and benchmark_rx.py in order to
implement multiple symbol differential detection (MSDD) proposed in [1].
As pointed out in the literature, the packet error rate of MSDD with
three observation symbols is superior to that of conventional two-symbol
Hello I'm from Germany!
I'm running Xubuntu 9.10 (Karmic Koala) on PS3 and installed GNU Radio 3.2.2
from tarball succesfully so far - but without gcell and gr-gcell!
Configure script says that gcell and gr-gcell will be build.
If I run make, the process aborts with following errors:
(it's an ext
Hello,
I am new in the GNU Radio community and I am looking for some help to
get started.
I have installed Linux Ubuntu 9.10 (Karmic Koala) as Virtual Box host
in OS X 10.5.8.
following the "Getting Started" indications from:
http://gnuradio.org/redmine/wiki/gnuradio/UbuntuInstall
I successfully
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