feldmaus schrieb:
First i post a clipping from the api docu about the analysis filterbank:
00043 def __init__(self, mpoints, taps=None):
00044 """
00045 Takes M complex streams in, produces single complex stream out
00046 that runs at M times the input sample rate
000
Josh Blum schrieb:
I implemented a tcp source and sink in grc. I only tested it between two
flow graphs on the localhost, so give it a try.
Thank you.
I do not have the time for testing it. My diploma end's at 18.6.2009.:-)
But thank you. :-)
regards Markus
___
Josh Blum schrieb:
There is a block called gr.head (misc->head) that shuts-off after N
samples pass through.
I mean to cut off the last line in the file and append the new data
to the file. But as i saw this is still a performance problem, however
it would work for me, because i do not save a
Josh Blum schrieb:
Thats a big flow graph! In pixels, how big should it be?
Yes that is a good Question. Generally it would be nice to
know how to change this, but i think 4096x4096 would be nice
for me, or maybe more for the students which proceed with my
task after me. :-)
regards Markus
Hi All,
i want to save my incoming values of peaks to a file, but with
the depending date. The file should also limited to size X or
to a number of samples.
I still read to make my own c++ and grc module, but i am
not very familiar with c++. i want to make it in python
and the the grc module to
Josh Blum schrieb:
Markus,
I really believe that the gui is not freezing. What you see is a result
of the fact the the peak detect outputs a binary 1 or 0 signal.
Connect the peak detect to a char_to_float block, and then to a
numbersink. Setup the numbersink for a min of 0 and a max of 1. T
Hi All,
i want to build an application including a peak detector, therefore
i am using the which has a TH Factor Rise and
TH Factor Fall to detect a peak. It also has a alpha and a look ahead
value.
As far as i understand, if the Threshold finds a possible peak
it searchs if the peak goes furth
Hi All,
is there a schematic for the LF-RX ?
I need only a pdf file not really schematic file.
Regards Markus
___
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Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Hi All,
is there a representative Picture with the Usrp and
Daughterboards on it?
Like this,
http://www.gnuradio.org/trac/wiki/UsrpFAQ/Intro/Mobo
But with the Daughterboards.
Regards Markus
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
Josh Blum schrieb:
-Josh
Hi and thanks for your response,
i am using a usrp-source and a fft-sink and peakdetect+scope-sink.
only the screen with the wave form freezes, the buttons of the scope
and the fft sink are not freezing. This seems to appear mostly when
there are many peaks i think,
Josh Blum schrieb:
feldmaus wrote:
feldmaus gmx.de> writes:
Hi All,
i still read in the gnuradio documentation, that we can prevent
freezing graphical elements by inserting the throttle element before,
but how can i locate which element is freezed ?
Is there any hlp in or python modules w
Markus Feldmann schrieb:
Eric Blossom schrieb:
On Wed, Apr 01, 2009 at 07:32:04AM +, feldmaus wrote:
Eric Blossom comsec.com> writes:
To disable automatic ADC control on all ADC's:
u.set_dc_offset_cl_enable(0x0, 0xf)
Then set the offset that you want for each A
Eric Blossom schrieb:
On Wed, Apr 01, 2009 at 07:32:04AM +, feldmaus wrote:
Eric Blossom comsec.com> writes:
To disable automatic ADC control on all ADC's:
u.set_dc_offset_cl_enable(0x0, 0xf)
Then set the offset that you want for each ADC using:
u.set_adc_offset(0, offset0)
u.set
Hi All,
i want to build a peak detektor with a Usrp(LFRX),so i hope some of
you can give me some hints about the peak detector modules ?
As i know, there are 3 peak detector:
1. Detect Peak
2. Peak Detector
3. Peak Detector2
Therefore i have some questions:
To 2.) What allowed values for ?
Eric Blossom schrieb:
*/
bool set_adc_offset (int which_adc, int offset);
As it says above, "By default the control loop is enabled on all ADC's."
You should leave it that way, with the possible exception of when
using the LF RX daughterboard.
Eric
I am using the LFRX Db.
So do i have
Patrick Strasser schrieb:
feldmaus wrote am 2009-03-27 20:52:
Further on my graphic does not look like my spectrum in the
FFT-sink.
A FFT sink displays the frequency domain, it's amplitude versus frequency.
Printing the samples shows the time domain, amplitude versus time.
The FFT sink feeds
Eric Blossom schrieb:
On Thu, Mar 26, 2009 at 07:32:09AM -0700, Johnathan Corgan wrote:
On Thu, Mar 26, 2009 at 4:12 AM, feldmaus wrote:
i want to save some output from the usrp and watch it with octave.
The usrp.source_c(...) block generates IQ data as pairs of 32-bit
floating point values.
Eric Blossom schrieb:
On Thu, Mar 26, 2009 at 07:32:09AM -0700, Johnathan Corgan wrote:
On Thu, Mar 26, 2009 at 4:12 AM, feldmaus wrote:
i want to save some output from the usrp and watch it with octave.
The usrp.source_c(...) block generates IQ data as pairs of 32-bit
floating point values.
Paul Mathews schrieb:
See 'usrp_am_mw_rcv.py' for an example. Look for the code relating to these
lines in particular:
if self.use_IF:
# Turn If to baseband and filter.
self.chan_filt = gr.freq_xlating_fir_filter_ccf (chanfilt_decim,
chan_filt_coeffs, self.IF_freq, us
Paul Mathews schrieb:
See 'usrp_am_mw_rcv.py' for an example. Look for the code relating to these
lines in particular:
if self.use_IF:
# Turn If to baseband and filter.
self.chan_filt = gr.freq_xlating_fir_filter_ccf (chanfilt_decim,
chan_filt_coeffs, self.IF_freq, us
Martin Braun schrieb:
On Mon, Mar 23, 2009 at 12:42:04PM +, feldmaus wrote:
Hi All,
i only want to say,it would be nice to have a clearer and
more comprehensive gnuradio python modules documentation with
examples.
This would solve many basic problems !
Hi Markus,
as explained in
http:/
Hi All,
i want to determine the value of the shown signal in my FFT-Plot
sink as exactly as i can. The reading error is to big. If i could zoom
into the FFT-Plot sink it would be better, but i don't know how to
zoom in. It would be nicer to read the value of the middle of the
FFT-Plot by any pyth
reibung: Mit Hilfe dieses Programmes soll ein
mehrfrequentes Impulsmessverfahren entwickelt werden,
womit Teilentladungen an Hochspannungsisolationen
nachgewiesen werden können.
"""
__title__='Mehrfrequentes Impulsmessverfahren'
__author__='Markus Feldmann'
__ve
Josh Blum schrieb:
Thee FFT plot is in decibels, its all relative. So if your signal is
40dB above the noise floor in the fft plot, than you calculate SNR:
http://en.wikipedia.org/wiki/Signal-to-noise_ratio#Technical_sense and
life is good.
I am not sure whether the Power of the Noise value
Josh Blum schrieb:
If it helps, this shows how the fft plot in dB is calculated from the
fft:
http://gnuradio.org/trac/browser/gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl/logpwrfft.py#L56
Thank you, :-)
i am not sure which solution is the best one, but there are 2 further
so
Firas Abbas schrieb:
Hi,
From: Sebastiaan Heunis
Can anyone please suggest a setup that I can use to test
the maximum value of samples?
Sebastiaan
The quickest way is to run grc, connect usrp to number sink and run the graph.
I tried the Number Think, but does it show the current valu
Hi All,
and thank you All for your Answers in my last thread.
Now i want to know, how i can convert the showing
values in the Y-Axis of the FFT-Plot Sink to dB, so that
i can interpret this correctly.
Do i have to define the max and min input value first ?
Results an input voltage 3.3V in the m
Martin Braun schrieb:
Don't confuse dB and dBW. You want to see -60dBW, but you see -11.9dB.
That's because your justing looking at numbers, not voltages.
However there should be a reference point ?
So if you are right, which is the reference number ?
From this to my Number should be a differenc
Yc Park schrieb:
Last week, I succeed to get a response from my usrp2.
After that, however, when I try usrp2_fft.py, or anything *.py related
with usrp2, I get the "Import Error with usrp2" error.
Make sure you have the right PYTHONPATH !
open a python shell,
$python
>>>import sys
>>>sys.path
t werden,
womit Teilentladungen an Hochspannungsisolationen
nachgewiesen werden können.
"""
__title__='Mehrfrequentes Impulsmessverfahren'
__author__='Markus Feldmann'
__version__='Diplom WS08/09 Ver.:2009-02-27-01'
__license__='GPL'
from gn
Yong J. Chang schrieb:
Thanks Don for previous question!
I successfully configured and compiled GNURadio trunk on Cygwin and tried to
run example.
But I'm getting following error:
Traceback (most recent call last):
File "./benchmark_tx.py", line 23, in
from gnuradio import gr, gru, modu
Josh Blum schrieb:
Are you using GRC?
-josh
Yes, i compiled gnuradio with support and
under Suse 11.1.
Nearby if you want to get a spec file to create a RPM
Package for Suse 11.1 i would send you mine. :-)
My Requirements are nearly complete.
Regards Markus
___
Hi All,
as i read in the documentation,
http://gnuradio.org/trac/attachment/wiki/UsrpFAQ/USRP_Documentation.pdf
Page 44, there is only a statement about maximum load at the Basic-RX.
(From a function generator directly into the input of the Basic-RX)
So i ask you,
is there a built-in safety to s
Eric Blossom schrieb:
On Mon, Feb 02, 2009 at 02:18:28PM +, feldmaus wrote:
There are some modules missing, like .
This looks like it's working. Unless you've got a USRP2 you've got
everthing you need.
gcell and gr-gcell are used only on the Cell Broadband Engine.
You've got gr-audio-al
Eric Blossom schrieb:
On Mon, Feb 02, 2009 at 02:18:28PM +, feldmaus wrote:
There are some modules missing, like .
This looks like it's working. Unless you've got a USRP2 you've got
everthing you need.
gcell and gr-gcell are used only on the Cell Broadband Engine.
You've got gr-audio-al
Eric Blossom schrieb:
On Wed, Jan 14, 2009 at 10:26:44AM +, feldmaus wrote:
Hi All,
i built gnuradio companion via svn.
My current System is openSuse 11.1.
For testing i build up a dial tone generator,
and got this error:
Exception RuntimeError: 'maximum recursion depth exceeded in
__subcla
Johnathan Corgan schrieb:
On Tue, 2009-01-13 at 22:59 +0100, Markus Feldmann wrote:
Can you try manually importing the package?
$ python
import wx
I tried to,
import wx
with eric and in the shell.
The same error.
It is python 2.5.2 not 2.6.x version.
I am not sure if this is important
Johnathan Corgan schrieb:
Can you try manually importing the package?
$ python
import wx
This may be the import issue Eric mentioned with Python 2.6.
I tried to,
import wx
with eric and in the shell.
The same error.
It is python 2.5.2 not 2.6.x version.
I am not sure if this is important.
Johnathan Corgan schrieb:
On Tue, 2009-01-13 at 20:41 +0100, Markus Feldmann wrote:
I installed anything in Debian Lenny which contains wx.
It needs python-wxgtk2.8, is this installed?
-Johnathan
I think so. These packages are installed
which contains <*wx*>:
libwxbase2.6-0
libwxb
I tried to the stable release of gnuradio,
version 3.1.3, but without success.
./configure --enable-gr-wxgui --enable-grc --enable-usrp
--enable-gr-usrp --enable-gr-audio-alsa --enable-gnuradio-examples
--enable-gnuradio-core --enable-gr-audio-oss
Ther error message is:
Traceback (most recen
Johnathan Corgan schrieb:
On Tue, Jan 13, 2009 at 8:25 AM, Markus Feldmann wrote:
i am thinking about to throw away the trunk source
and use the stable release.
I want to realize an AM/FM Radio with the USRP.
Which Packages do i need ?
I'm not sure where you got the idea there
Johnathan Corgan schrieb:
On Tue, Jan 13, 2009 at 8:25 AM, Markus Feldmann wrote:
i am thinking about to throw away the trunk source
and use the stable release.
I want to realize an AM/FM Radio with the USRP.
Which Packages do i need ?
I'm not sure where you got the idea there
Hi All,
i am thinking about to throw away the trunk source
and use the stable release.
I want to realize an AM/FM Radio with the USRP.
Which Packages do i need ?
Shall these packages be extracted into one directory
and then compiled together, or each package into
his own directory
Hi All,
i think there is an misconfiguration in the swig package ?!
I did the following:
/configure --enable-gr-wxgui --enable-grc --enable-usrp --enable-gr-usrp
--enable-gr-audio-alsa --enable-gnuradio-examples --enable-gnuradio-core
--enable-gr-audio-oss --prefix=/usr
make
checkinstall(like
Hi All,
i am asking for help to get my USRP correctly
assembled.
I fear to damage my USRP.
In my USRP package is a fan, but where to
put this fan ?
The screws on the motherboard do no fit with the fan.
Do i need a fan for Altera Cyclone Chip on my Motherboard ?
Is there an Introduction to assemb
Hi All,
i just downloaded and compiled Gnu Radio from Trunk, but
i am not sure which Option i have to use?
Or which Option should be useful for Gnu Radio Companion.
I want the use the Gnu Radio Companion to build an FM and AM-Radio..
My System is a Debian Sid 386 System with AMD Athlon CPU.
My
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