hi,
can anyone point me towards some example code using gr-buffer?
I need to read a sample stream from HD (not very fast..)
and afterwards re send it towards the usrp significantly faster (8complex
Msps).
is gr-buffer a good candidate to do this?
thanks
--
Vincenzo Pellegrini
Roshan-
> > I think the OP is confused at what "signal processing" is happening on the
> > RF
> > daughterboard. Although some recent posts have said "none", there actually
> > is some
> > -- filters to separate the I and Q signals which were summed at the point
> > of original
> > transmissio
Hi Kshitij,
I am considering the channel estimation by pilot. So, it may very like what
you want. Could you give more detail what is your target?
Is there any one have experience on the real time channel estimation (with
pilot) on GNU Radio?
2007/7/18, David Scaperoth <[EMAIL PROTECTED]>:
On J
Ian-
> Ok, that makes sense. Looking back at this site
> (http://www.nd.edu/~jnl/sdr/docs/tutorials/4.html#tth_sEc2.1) I see
> that the DDC is combining the I and Q inputs to do complex
> multiplication. I originally thought it was multiplying the I and Q
> components separately, so that no inpu
On 7/18/07, Kim Toms <[EMAIL PROTECTED]> wrote:
Arrow has designed a new demonstration card for the Cyclone III FGPA from
Altera. I attended one of the seminars yesterday. The board contains many
peripherals, an EP3C25F324 FPGA, 1Gb SD Card, 96x64 pixel bit mapped OLED
display, audio out, sever
hi..
I want to make the usrp function as a relay for audio files.
Apart from working on rx_voice.py for getting the relay function to work(i have
written about the problem faced by me in my previous mail)
http://lists.gnu.org/archive/html/discuss-gnuradio/2007-07/msg00203.html
i just made up a
Arrow has designed a new demonstration card for the Cyclone III FGPA from
Altera. I attended one of the seminars yesterday. The board contains many
peripherals, an EP3C25F324 FPGA, 1Gb SD Card, 96x64 pixel bit mapped OLED
display, audio out, several LEDs, buttons, 32Mb CFI Parrallel Flash, 8Mby
On Jul 18, 2007, at 4:53 PM, Kshitij Kumar Singh wrote:
As a part of some research work on cooperative communications in
wireless networks, I had decided to use
the USRP as one the of my implementation platforms. I used the
tutorials by D. Shen as a reference. There are, however , some
sp
As a part of some research work on cooperative communications in wireless
networks, I had decided to use
the USRP as one the of my implementation platforms. I used the tutorials by
D. Shen as a reference. There are, however , some specific problems I need
help with :
-
Jeff Brower wrote:
I think the OP is confused at what "signal processing" is happening on the RF
daughterboard. Although some recent posts have said "none", there actually is
some
-- filters to separate the I and Q signals which were summed at the point of
original
transmission to make a singl
Ok, that makes sense. Looking back at this site
(http://www.nd.edu/~jnl/sdr/docs/tutorials/4.html#tth_sEc2.1) I see
that the DDC is combining the I and Q inputs to do complex
multiplication. I originally thought it was multiplying the I and Q
components separately, so that no input to Q would me
Johnathan-
> > I assume this also true for the BasicRX daughterboard? (Doesn't do
> > downconversion, but does do analog multiplication to get I and Q?)
>
> Almost. The boards don't do anything with the signal, but have separate
> I and Q inputs that go to the ADCs as is.
>
> On the FPGA, howev
Ian Larsen wrote:
> I assume this also true for the BasicRX daughterboard? (Doesn't do
> downconversion, but does do analog multiplication to get I and Q?)
Almost. The boards don't do anything with the signal, but have separate
I and Q inputs that go to the ADCs as is.
On the FPGA, however, the
The BasicRX daughterboard doesn't do anything signal processing, with
the exception of passing the signal through some transformers. It has
two separate I and Q inputs, which are passed down to the USRP, where
all the signal processing is actually done.
-Roshan
Ian Larsen wrote:
Thank you, t
Thank you, that's very helpful.
I assume this also true for the BasicRX daughterboard? (Doesn't do
downconversion, but does do analog multiplication to get I and Q?)
-Ian
On 7/18/07, Johnathan Corgan <[EMAIL PROTECTED]> wrote:
Ian Larsen wrote:
> I have a conceptual question about the USRP.
Hi,
did somebody try to use gnuradio for receiving DRM (Digital Radio Mondiale)?
It seems to me that neither M-QAM demodulation nor the apropriate audio codec
is presently implemented in gnuradio, however, the DRM program "dream" has
an option --fileio, which should be able to replace the sound c
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