Hi all,
When a complex signal is given to QT time sink block it displays the
signal in blue color.There is a red line also at zero level.is this
the DC component??And it doesn't display the imaginary part as in WX
Scope sink block?
Regards,
Ali
___
Discu
Made a typo. --yuv=chroma=UYVY should be --yuv-chroma=UYVY
Ron
On 7/16/2014 10:07 PM, Ron Economos wrote:
All video decoders use the YCbCr colorspace. You'll need
to convert that to YIQ for NTSC.
You can create a YCbCr file with vlc.
vlc -I rc -V yuv --yuv-file=
--yuv=chroma=UYVY
This wil
All video decoders use the YCbCr colorspace. You'll need
to convert that to YIQ for NTSC.
You can create a YCbCr file with vlc.
vlc -I rc -V yuv --yuv-file= --yuv=chroma=UYVY
This will create a YCbCr file with 4:2:2 chroma in the format
Cb Y Cr Y Cb Y Cr Y ...
vlc does put a header and fr
On 7/16/14 9:50 PM, Jordan Johnson wrote:
After finishing my AM Stereo transmitter, I have decided to build an
NTSC modulator. I think I have the actually modulation and filter blocks
down, I just need to firgure out how to get the right signals from a
digital video file. The file source wouldn't
After finishing my AM Stereo transmitter, I have decided to build an NTSC
modulator. I think I have the actually modulation and filter blocks down, I
just need to firgure out how to get the right signals from a digital video
file. The file source wouldn't work; I would probably have to use
gstreame
Take a look at netstat -s and see if that helps isolate if or where
packet loss is occurring. For example in the udp: section there are statistics
for total datagrams tx/rx along with dropped, bad checksums, etc. UDP has no retransmission feature built in so bad checksums and bad packets
get dro
It is my understanding that the UDP protocol does not quarentee delivery to the
destination. That is, it has no recovery mechanism for undelivered packets.
Alan
From: discuss-gnuradio-bounces+alan.r.hill=gmail@gnu.org
[mailto:discuss-gnuradio-bounces+alan.r.hill=gmail@gnu.org] O
I'm talking about the UDP traffic between the host and the N2xx device.
on Jul 16, 2014, madengr wrote:
Marcus,What OS are you using? I had the same issue (UDP not getting through onreceive side) with Fedora 20, even with Firewall "supposedly" turned off(i.e. Trusted Zone selected). Manuall
Marcus,
What OS are you using? I had the same issue (UDP not getting through on
receive side) with Fedora 20, even with Firewall "supposedly" turned off
(i.e. Trusted Zone selected). Manually adding the port exemption (I believe
I used port 65000) let the UDP through and it worked.
Lou
KD4HSO
I don't think it's a firewall rule problem, but do you think opening up ports
would solve my problem? I know the port I'm currently using on the TCP
connection is port#: 1234 which deals with Mercurial and git default ports for
serving Hyper Text.
When I had the UDP connection, I was using the
Peter,
Have you tried Baudline? It's not open source, but it is free, and will do
allot of what you want. Looks like there will be a new version soon with
64-bit support and I/Q demod. It's also quite easy to pipe GR file sink to
it via a FIFO (gr-baz has a sink for just that), but it will also
On Wed, Jul 16, 2014 at 12:48 PM, Tom Rondeau wrote:
> On Wed, Jul 16, 2014 at 12:10 PM, Doug Hutton
> wrote:
>
>> At the beginning of the GNURadio install, I took all of the defaults,
>> so it was put into
>> Home/doug/target/. I am still feeling my way around Linux. Can you tell
>> me where
On Wed, Jul 16, 2014 at 12:10 PM, Doug Hutton wrote:
> At the beginning of the GNURadio install, I took all of the defaults, so
> it was put into
> Home/doug/target/. I am still feeling my way around Linux. Can you tell
> me where I need to be
> looking to insert the path to gnuradio.i?
>
> Th
On Wed, Jul 16, 2014 at 11:29 AM, Doug Hutton wrote:
> Yesterday, I built a new Ubuntu 14.04, installed the new GNURadio 3.7.4
> and installed gr-op25. This all works, except that the gr-baz Op25 Decoder
> block, and other blocks, have unresolved baz imports. I ran ./pybombs
> install gr-baz and
Two suggestions from my side:
If you want to use Python, you can use the Spyder IDE
(https://code.google.com/p/spyderlib/). Spyder is mainly designed for
scientific programming. It even has built-in plotting capabilities.
Another package I have used for that purpose is kst-plot. It is fast and
I've never used it for RF work, but pandas is a very powerful framework for
working with timeseries and multi-dimensional data.
Very Respectfully,
Dan CaJacob
On Wed, Jul 16, 2014 at 11:20 AM, Marcus Müller
wrote:
> Hi Peter,
>
> GNU Radio is based very much on the idea of a data stream, so i
Yesterday, I built a new Ubuntu 14.04, installed the new GNURadio 3.7.4
and installed gr-op25. This all works, except that the gr-baz Op25
Decoder block, and other blocks, have unresolved baz imports. I ran
./pybombs install gr-baz and it ended with errors as shown in the
Terminal log below.
Hi Peter,
GNU Radio is based very much on the idea of a data stream, so it might
not actually be the tool of choice for static analysis.
However, there is quite a lot which can be done with on-board tools, so
let me comment in-text.
On 16.07.2014 16:52, Peter A. Bigot wrote:
> GNU Radio is a great
On Wed, Jul 16, 2014 at 09:52:43AM -0500, Peter A. Bigot wrote:
>
> Is any such framework available now or in development? If not, is
> anybody interested in joining me offline to discuss the requirements
> and design for such a thing?
Something like this very nearly happened as a GSoC project th
GNU Radio is a great tool for applications and dynamic experimentation,
but it doesn't have a lot of support for static/offline analysis of
time-series data. I.e. I've captured some signal data and I want to
explore its properties interactively so I can figure out what I want to
do with it in
Ahh-- my mistake, I was assuming the "dips" were something like one
symbol, the other being the continous wave with the 400u amplitude, and
completely missed the differences in period on the non-dippy signal...
The lower halfwaves of the lower-frequency oscillations look a little
strange; maybe thi
On 07/16/2014 03:08 PM, Marcus Müller wrote:
> this doesn't look like FSK, because then the amplitude of the
> oscillations shouldn't change (only their frequency).
> If I had to guess, it would be on-off-keying, and you could simply
> detect that by squaring the signal, and using the integrate blo
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Hi Stefan,
this doesn't look like FSK, because then the amplitude of the
oscillations shouldn't change (only their frequency).
If I had to guess, it would be on-off-keying, and you could simply
detect that by squaring the signal, and using the integra
On 07/16/2014 12:00 PM, Stefan Wunsch wrote:
> I'm not sure in which way you mean 'related to'.
>
> The range is not measured with the EIRP. The difference of the
> dopplerpeak phases of the two CW signals is proportional to the target
> range. This way you get the target range!
I guess the OP as
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Hey all,
I have some updates for you too.
After some evaluations with my mentors, I started from scratch and
wrote my own OOT module gr-celec which now contains a working rate 1/n
Viterbi Decoder which can have as many states as it wants. If it has
mo
I'm not sure in which way you mean 'related to'.
The range is not measured with the EIRP. The difference of the
dopplerpeak phases of the two CW signals is proportional to the target
range. This way you get the target range!
A higher EIRP makes the detection easier because you have higher
backsca
Slightly :)
Here's a good link for more info:
http://www.radartutorial.eu/index.en.html
Mike
--
Mike Jameson M0MIK BSc MIET
Email: m...@scanoo.com
Web: http://scanoo.com
On Wed, Jul 16, 2014 at 7:08 AM, Vanush Vaswani wrote:
> Nice. I don't know much about radar. Is range related to EIRP?
>
I wish to inform the GNURadio community on some of the latest results on the
use of the Xilinx Zynq platform
for real time radiofrequency signal processing aimed at making the best use of
the PS/PL architecture.
Let me emphasize that although I am writing this email, all the technical work
has b
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