We've been working with receive_path.py for a while now. As you've more than likely guessed, Ben is working with me. I guess he had an older build of the gnuradio package, because his carrier_sensed() function just had a comment that said FIX ME, and I haven't been working on carrier stuff for a bi
On Mon, Sep 18, 2006 at 10:47:23PM -0500, Michael Ford wrote:
> I've been wrestling with the float vector sink for a couple of days now.
> We're trying to give our python script access to the values being output by
> our narrow filter, but no matter what happens, the vector sink block doesn't
> see
>> # ./usrp_siggen.py -f 10
>That would be 10 Hz.
>Everywhere a frequency is expected you can use a float followed
>immediately by an SI suffix. E.g., -f 92.3M
Thanks.
>> What I got was nine copies of a "connection timed out" message and a
>> complaint about it not being able to load the FPGA
I've been wrestling with the float vector sink for a couple of days
now. We're trying to give our python script access to the values being
output by our narrow filter, but no matter what happens, the vector
sink block doesn't seem to be giving out anything.
Our code is as follows:
from gnuradio i
On Tue, Sep 19, 2006 at 09:37:46AM +0800, Lin Huang wrote:
> I think it is under developing now. You may search 'm-block' or BBN in the
> discussion.
>
> 2006/9/19, [EMAIL PROTECTED] <[EMAIL PROTECTED]>:
> >
> >I couldn't help but notice that there was a mention of TDMA on the Wiki:
> >
> >"Precis
I think it is under developing now. You may search 'm-block' or BBN in the discussion.
2006/9/19, [EMAIL PROTECTED] <[EMAIL PROTECTED]>:
I couldn't help but notice that there was a mention of TDMA on the Wiki:"Precision time stamping and synchronization for TDMA waveforms"
is this time stamp referr
Hi:
Are there external trigger on USRP board for acquiring data
when use usrp_oscope.py ?
sunshine
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On Mon, Sep 18, 2006 at 02:16:35PM -0600, Bahn William L Civ USAFA/DFCS wrote:
> I believe I am at the point were I should be able to talk to the USRP,
> but can't.
Sorry to hear that ;)
> We presently have the USRP with two BasicTX and BasicRX boards
> installed.
>
> We are running Fedora Core
If you are asking about wxpython on FC5, then it should be:
wxPython-devel-2.6.3.2-1.fc5
wxPython-2.6.3.2-1.fc5
thanks,
eric
On Mon, 18 Sep 2006, Eric Blossom wrote:
On Mon, Sep 18, 2006 at 11:42:17PM +0200, Vincenzo Pellegrini wrote:
actually it prints an error complainig that module wx ha
On Mon, Sep 18, 2006 at 11:42:17PM +0200, Vincenzo Pellegrini wrote:
> actually it prints an error complainig that module wx has no __version__
> attribute.
> sorry that i cannot be more precise @ the moment,
> because I have just removed the default package and I'm currently rebuilding
> wxPython
I couldn't help but notice that there was a mention of TDMA on the Wiki:
"Precision time stamping and synchronization for TDMA waveforms"
is this time stamp referring to a method of the tun/tap driver in tunnel.py? or
is there another example that shows how to do that??
I am not very experience
I believe I am at the point were I should be able to talk to
the USRP, but can’t.
We presently have the USRP with two BasicTX and BasicRX
boards installed.
We are running Fedora Core 5
We have installed GNU Radio per the instructions in the
README as closely as possible.
If I run the
On Mon, 2006-09-18 at 14:08 -0400, Lee Patton wrote:
> On Mon, 2006-09-18 at 12:32 -0400, Achilleas Anastasopoulos wrote:
> > John,
> >
> > If want to measure the time difference between two sine waves in noise
> > and accuracy is your primary objective, then you should start with the
> > "optima
If I understand correctly (always a big assumption), it's the second
model. The two sine waves are electrically independent, and my
assumption is that they would be analyzed by separate, but coherently
clocked, ADCs as two channels.
I also should add that while the signals are generally sinus
On Mon, 2006-09-18 at 12:32 -0400, Achilleas Anastasopoulos wrote:
> John,
>
> If want to measure the time difference between two sine waves in noise
> and accuracy is your primary objective, then you should start with the
> "optimal" solution to the problem and not with an ad-hoc technique
> suc
John,
Achilleas implies how to compute the "score" for the parameters A1, A2,
t1, and t2 and that the problem is to minimize the distance between r
and s, but he does not say how to reestimate or compute the best set of
parameters. That is all the meat to the problem (the minimization
o
On Mon, Sep 18, 2006 at 06:26:34PM +0200, Vincenzo Pellegrini wrote:
> thanks eric, thanks jonathan
> I was actuallly missing libusb-devel FC5 package, this is not installed by
> default even if you choose the "software development" configuration template
> when performing FC5 installation.
> why n
John Ackermann N8UR wrote:
The signals start out at HF -- typically 10MHz -- but are each mixed in
the analog domain with a common local oscillator that's offset by about
1Hz (ie, LO is 10.000 001Hz) to yield a pair of 1 Hz difference
The LO is at 10.000 001 MHz, not Hz. Sorry.
__
Achilleas Anastasopoulos wrote:
John,
If want to measure the time difference between two sine waves in noise
and accuracy is your primary objective, then you should start with the
"optimal" solution to the problem and not with an ad-hoc technique
such as measuring the zero crossings.
In the s
Johnathan Corgan wrote:
John Ackermann N8UR wrote:
The zero crossings are then used to calculate the time interval (or
phase) between the two waves. I need to capture each pair of zero
crossings, and can't average over multiple intervals.
If it is the phase difference that you are ultimately
John,
If want to measure the time difference between two sine waves in noise
and accuracy is your primary objective, then you should start with the
"optimal" solution to the problem and not with an ad-hoc technique
such as measuring the zero crossings.
In the simplest scenario, if your model l
thanks eric, thanks jonathanI was actuallly missing libusb-devel FC5 package, this is not installed by default even if you choose the "software development" configuration template when performing FC5 installation.
why not adding this specific hint on the FC5-specific installation guide on the web
John Ackermann N8UR wrote:
> The zero crossings are then used to calculate the time interval (or
> phase) between the two waves. I need to capture each pair of zero
> crossings, and can't average over multiple intervals.
If it is the phase difference that you are ultimately looking for, there
ar
On Mon, Sep 18, 2006 at 09:53:49AM -0400, [EMAIL PROTECTED] wrote:
>
> Hi all,
>
> I have been playing around with the fm_tx_2_daughterboards.py and others to
> send multiple signals at once. I just wanted to confirm my
> suspicions about the USB transmit path because I didn't see anyone
> expli
I wonder if there is someone on the list who'd be willing to let me call
them on the phone to talk about the feasibility of using DSP techniques
(i.e., GnuRadio) to very precisely measure the zero crossing point of a
slowly changing waveform with some noise on it.
More precisely, the goal is t
You are correct. The signals need to be at the same sampling rate for
the interleaver to work. We are currently working on a modification of
that such that you can have different rates on both channels.
Thomas
On 9/18/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
Hi all,
I have been playin
Hi all,
I have been playing around with the fm_tx_2_daughterboards.py and others to
send multiple signals at once. I just wanted to confirm my
suspicions about the USB transmit path because I didn't see anyone
explicitly talking about this: When I look in the usrp1.py and usrp.py files
that onl
Dear All,
Greetings.
We are interested in taking up project
in GNU RADIO. We are planning to develop it for windows platform using the PC
soundcard using C.
Should all contributions be in the specified C++
format??
Regarding the hardware is it necessary to use the
indicated USRP b
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