Martin Dvh wrote:
Maybe you could inject a stable frequency near the wanted RX frequency.
Say a few Mhz away from the 1.57542e9 you want to receive.
Then you could use this in the output to remove the jitter and LO drift.
for example:
inject 16 Mhz (=25 harmonic of 64MHz) at the input
Gregory W Heckler wrote:
The real problem lies in the fact that the carrier tracking loop (a
3rd order PLL) of my software receiver cannot achieve phase lock. The
phase jitter looks high, and the LO frequency drifts so much it
dominates over the Doppler derived from satellite motion.
Yes,
On Tue, Mar 06, 2007 at 07:39:45PM -0800, Matt Ettus wrote:
>
> >In [4728] on the trunk, I moved these to site-packages/usrpm.
> >
>
> Why usrpm? Why not just usrp?
>
> Matt
Short answer: because it doesn't work.
Long answer: because there's lots of code that does
from gnuradio import us
I've just merged the new digital modulation receiver work into the trunk.
This was long overdue, but there were a lot of picky issues I had to work
out.
This is a replacement for what was formerly a separate Costas Loop and M&M
symbol sync loop done in the DBPSK and DQPSK blocks. It is now a
decis
In [4728] on the trunk, I moved these to site-packages/usrpm.
Why usrpm? Why not just usrp?
Matt
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Hi All, Nos,
If I remember your initial design goals correctly:
100 Msamples/second (for a receiver bandwidth of 0 - 50 MHz)
16 bits/sample
If my simple, rough, calculation is right this would give you a minimum
bitstream over Gigabit Ethernet of:
16 * 100 M = 1600 Mbit/s or 1.6 Gbit/s !! Exclu
hello I used usrp_tvrx_am_rcv_gui.py - n - f 65.75M - d 26 - i usrp tests in
the search of the video decoding put generates a file that this in annex.they
alguem would know of that it forms would see this archive
Cleber Cezar
__
Fale com seus am
On Tue, Mar 06, 2007 at 01:38:51PM +0100, Trond Danielsen wrote:
> Hi,
>
> 2. Install path for some of the python modules are problematic:
> /usr/lib64/python2.4/site-packages/__init__.py
> /usr/lib64/python2.4/site-packages/_usrp_prims.la
> /usr/lib64/python2.4/site-packages/_usrp_prims.so
Hello I tested NTSC Receiver didn't get see any channel of TV.What she appeared
this in annex.it would like to know some ti.
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I have identified the cause of the shorting issue I was experiencing and
thought I would share. The bottom-left corner mounting hole of the USRP
passes very close to the internal heat sink pad for the 3.3V regulator;
this pad is at 3.3V due to the regulator design (tab is hot). Some of
the green bo
On Tue, Mar 06, 2007 at 04:57:55PM -0500, Gregory W Heckler wrote:
> Brian:
>
> From what I see it does not continuously stream data, which is a
> requirement for my needs. Additionally I am looking at recording GPS L2C
> and the new Galileo frequencies, so a tuneable front end is a must.
>
I'
Gregory W Heckler wrote:
> I've hit a wall with using the DBSRX to record GPS L1 C/A code data. The
> signal path consists of the following:
>
> Spirent GPS Simulator -> 2 MHz wide SAW @ L1 -> +40 dB Miteq Amp ->
> DBSRX -> USRP
>
> Notes/Settings:
>
> 1) Spirent Simulator:
> Static scenario, 39
2007/3/6, Gregory W Heckler <[EMAIL PROTECTED]>:
> If anyone would like any GPS IF data I would be happy to email it to
your personal email address (indicate how many seconds of data you would
like). Thanks!
I am very interested to here more about your experience with GNU Radio
and GPS! I am cr
On Tue, Mar 06, 2007 at 09:57:57PM +0100, Trond Danielsen wrote:
> 2007/3/5, Greg Troxel <[EMAIL PROTECTED]>:
> >
> > Once such a packet is found then the flowgraph has a message sink
> > and puts this half-baked packet in this queue, together with
> > possibly another message of a different TYP
Trond Danielsen wrote:
> lør, 03.03.2007 kl. 10.16 -0800, skrev Eric Blossom:
>
>>OK. Why don't you create the page as WikiStart2, and then we can
>>iterate the design there. When we're all happy, we'll move it to
>>WikiStart
>
>
> I have created http://gnuradio.org/trac/wiki/WikiStart2. Let m
On Tue, Mar 06, 2007 at 10:46:49PM +0200, [EMAIL PROTECTED] wrote:
>
> And indeed I've thought about saturating the ADC. I first thought
> about a varistor for the sole purpose of protecting it from voltage
> spikes, but I realized that it could cause clipping, which would look
> like overmodulat
Brian:
From what I see it does not continuously stream data, which is a
requirement for my needs. Additionally I am looking at recording GPS L2C
and the new Galileo frequencies, so a tuneable front end is a must.
Greg
Brian Padalino wrote:
On 3/6/07, Gregory W Heckler <[EMAIL PROTECTED]> wr
2007/3/6, Martin Dvh <[EMAIL PROTECTED]>:
I would add a heading "Full Documentation Index" or "Wiki Index" with a link
to http://gnuradio.org/trac/wiki/TitleIndex under Documentation.
Good idea! I had that in mind earlier, but somehow it must have slipped.
--
Trond Danielsen
__
2007/3/6, Eric Blossom <[EMAIL PROTECTED]>:
On Tue, Mar 06, 2007 at 01:21:17PM -0500, Brian Padalino wrote:
> Has anyone seen this?
>
> http://www.sparkfun.com/commerce/product_info.php?products_id=8238
>
> It uses an FX2 and actually some USRP files are in with the source -
> but provides no pr
On Tue, Mar 06, 2007 at 01:21:17PM -0500, Brian Padalino wrote:
> Has anyone seen this?
>
> http://www.sparkfun.com/commerce/product_info.php?products_id=8238
>
> It uses an FX2 and actually some USRP files are in with the source -
> but provides no processing, just a book reference to get some
2007/3/5, Greg Troxel <[EMAIL PROTECTED]>:
Once such a packet is found then the flowgraph has a message sink
and puts this half-baked packet in this queue, together with
possibly another message of a different TYPE (control message) with
some parameters required in the second flow (such
On 3/6/07, Brian Padalino <[EMAIL PROTECTED]> wrote:
On 3/6/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Yes, I thought about simulations today. Apparently Verilog is designed
> to facilitate that aswell.
> Should I do these simulations with for example Altera's Quartus II?
If you want to
On 3/6/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
Yes, I thought about simulations today. Apparently Verilog is designed
to facilitate that aswell.
Should I do these simulations with for example Altera's Quartus II?
If you want to simulate Verilog, there are free tools available along
wit
On 3/6/07, Brian Padalino <[EMAIL PROTECTED]> wrote:
On 3/6/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Yeah, that indeed is an important issue that needs a very detailed and
> thought-out solution. One thing I'd like to be able to do some day is
> have maybe three of these devices all 100
On Tue, Mar 06, 2007 at 11:04:43AM -0500, Michael Dickens wrote:
> On Mar 5, 2007, at 11:21 PM, Eric Blossom wrote:
> >you made two changes:
> >
> > -g1 -> -g
> > -O1 -> -O2
> >
> >Does -g -O1 work on PPC-OSX?
> >
> >We really want to "turn down" the level of optimization used while
> >compiling
On 3/6/07, Gregory W Heckler <[EMAIL PROTECTED]> wrote:
I've noticed that the DLL of my software receiver settles to +15 Hz, and
the true IF is +24 kHz from the predicted IF. This would indicate that
the 64 MHz board clock is ~1 kHz from its spec value. This, in itself is
not a problem, but I was
I've hit a wall with using the DBSRX to record GPS L1 C/A code data. The
signal path consists of the following:
Spirent GPS Simulator -> 2 MHz wide SAW @ L1 -> +40 dB Miteq Amp ->
DBSRX -> USRP
Notes/Settings:
1) Spirent Simulator:
Static scenario, 39 deg North, -84.866 deg West, 0.0 meter h
On Tue, Mar 06, 2007 at 10:29:23AM -0500, Josh Blum wrote:
> I just want to clarify. All transmit modules for the USRP have exactly one
> sub-device? I can only send to data to A:0 or B:0. This is correct?
>
> -Josh
Yes, that is the case.
Eric
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Di
On 3/6/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
Yeah, that indeed is an important issue that needs a very detailed and
thought-out solution. One thing I'd like to be able to do some day is
have maybe three of these devices all 100 meters from my computer
arranged in a triangle and then tr
Il giorno mar, 06/03/2007 alle 11.44 -0800, Eric Blossom ha scritto:
> Davide, and everyone else,
>
> Do not post large messages to the list.
Opsss... sorry! :(
--
Davide Anastasia
web: http://www.davideanastasia.com/
email: [EMAIL PROTECTED]
___
On 3/5/07, Brian Padalino <[EMAIL PROTECTED]> wrote:
On 3/5/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> (Found the Reply to All button!)
That Analog Devices AD9235-65 looks like it's good if you want to
sample at something like the USRP is doing right now - 64MHz. So what
you'd be lo
On 3/6/07, Henry Vredegoor <[EMAIL PROTECTED]> wrote:
Hi,
You may have a look at and/or contact:
http://wwwhome.cs.utwente.nl/~ptdeboer/ham/sdr/
He is also using some basic Ethernet interface/-frame?
Henry.
I just sent him an email. He mentioned considering releasing the code
under the GPL
On Tue, Mar 06, 2007 at 01:30:49PM +0100, Davide Anastasia wrote:
> Il giorno dom, 04/03/2007 alle 22.55 -0800, Peter Monta ha scritto:
> > >
> > > The test bench would be nice.
> > >
> >
> > Attached.
>
> I tried this test bench, but I guess it doesn't work. Infact, I test the
> bit_pack modu
Hi Martin,
The document that describes MIMO configuration below suggests how 64MHz
clocks of two boards are synchronized. However, for coherent MIMO
processing, the LO, which for 802.11b band is arnd 2.4GHz has to be
synchronized. How does that happen??
Thanks,
Rohit
On 2/25/07, Martin Dvh <[E
On Tue, Mar 06, 2007 at 05:42:34PM +0100, Trond Danielsen wrote:
> 2007/3/6, Eric Blossom <[EMAIL PROTECTED]>:
> >On Tue, Mar 06, 2007 at 01:38:51PM +0100, Trond Danielsen wrote:
> >> Hi,
> >>
> >> I creating a spec file for GNU Radio, and I discovered some minor issues:
> >>
> >> 1. Standard libra
Has anyone seen this?
http://www.sparkfun.com/commerce/product_info.php?products_id=8238
It uses an FX2 and actually some USRP files are in with the source -
but provides no processing, just a book reference to get some MATLAB
scripts.
Maybe this would be good to support within GNU Radio for t
Hi Brian and friends,
Well, yes, CCS is the Code Composer Studio, which I am using to interface with
the TI DSKs.and my project currently involves working on data which is
being fed to/from the FPGA.so I need the FPGA as a working programmed
device.
Yes, I do know how to write testbenc
On 3/6/07, Davide Anastasia <[EMAIL PROTECTED]> wrote:
I tried this test bench, but I guess it doesn't work. Infact, I test the
bit_pack module obtaining a strange output file like the attached one.
Any suggestion from the list and/or Verilog Guru? :)
It looks like you possibly have multiple s
2007/3/6, Eric Blossom <[EMAIL PROTECTED]>:
On Tue, Mar 06, 2007 at 01:38:51PM +0100, Trond Danielsen wrote:
> Hi,
>
> I creating a spec file for GNU Radio, and I discovered some minor issues:
>
> 1. Standard library paths are hardcoded into some of the libraries. I
> use this command in the spec
> -Original Message-
> From: Eric Blossom [mailto:[EMAIL PROTECTED]
> On Mon, Mar 05, 2007 at 11:59:39PM -0500, Tom Rondeau wrote:
> > Alright, I've got my PS3 in my lab all set up with Fedora Core 6 (I
> > know, Bob, you told me to go with YDL, but I needed to play around
> > first). The
On Tue, Mar 06, 2007 at 01:38:51PM +0100, Trond Danielsen wrote:
> Hi,
>
> I creating a spec file for GNU Radio, and I discovered some minor issues:
>
> 1. Standard library paths are hardcoded into some of the libraries. I
> use this command in the spec file to fix libtool before building:
> sed
On Tue, Mar 06, 2007 at 01:58:02AM -0500, Mahmoud Gad wrote:
> Hi
>
> I am using Fedora 6, on HP Pavilion 5000 laptop, with USB 2.0, a new USRP
> board (tested at Jan 2007) and GNUradio 3.0 installed without any problem.
>
> The board is seen as USB 2.0 device (when I used usbview).
>
> Now, Whe
On Mon, Mar 05, 2007 at 11:59:39PM -0500, Tom Rondeau wrote:
> Alright, I've got my PS3 in my lab all set up with Fedora Core 6 (I
> know, Bob, you told me to go with YDL, but I needed to play around
> first). The installation went swimmingly until I tried to run a GNU
> Radio app.
>
> I first tri
On Mar 5, 2007, at 11:21 PM, Eric Blossom wrote:
you made two changes:
-g1 -> -g
-O1 -> -O2
Does -g -O1 work on PPC-OSX?
We really want to "turn down" the level of optimization used while
compiling the SWIG stuff. The SWIG stuff is not performance critical,
and using a lower level of opti
I just want to clarify. All transmit modules for the USRP have exactly one
sub-device? I can only send to data to A:0 or B:0. This is correct?
-Josh
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> -Original Message-
> From: [EMAIL PROTECTED] [mailto:discuss-
>
> Hi Eric,
>
> I am designing a matlab guide interface to run the tunnel example and if
> the
> log option is selected, I am planning to throw up another GUI with the
> plots
> of the logged data.
>
> My question at this p
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:discuss-
>
> On Sun, Mar 04, 2007 at 06:20:07PM -0500, [EMAIL PROTECTED] wrote:
>
> > I want to do constellation mapping in pyhton. I have code that does
> > a gr.packed_to_unpacked_bb and then gr.chunks_to_symbols_bc using a
> > con
Hi,
I creating a spec file for GNU Radio, and I discovered some minor issues:
1. Standard library paths are hardcoded into some of the libraries. I
use this command in the spec file to fix libtool before building:
sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
se
lør, 03.03.2007 kl. 10.16 -0800, skrev Eric Blossom:
> OK. Why don't you create the page as WikiStart2, and then we can
> iterate the design there. When we're all happy, we'll move it to
> WikiStart
I have created http://gnuradio.org/trac/wiki/WikiStart2. Let me know
what you think. I have tried
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