Hi,
> Matt Ettus wrote :
>
>
> I checked in a fix to the verilog to allow this. However, the released
> rbf files haven't been updated yet, so you will need to compile it
> yourself.
>
> Matt
I compiled your changes today. The rbf is given on the link below. I will
try to test it and give yo
Hi,
The official release of FFTW 3.2 is now available from the FFTW home page:
http://www.fftw.org/
Compared to version 3.1.3 of FFTW, highlights of the FFTW 3.2 release
include:
* Significantly faster r2c/c2r transforms, especially on machines
(e.g. x86) with SIMD instruction.
* Perfo
Hi,
I have not test it yet. But did you followed Eric suggestion in this
thread!. change every (self.u.set_interp_rate(xxx)) with:
self.u.stop()
self.u.set_interp_rate(xxx)
self.u.start()
Best regards,
Firas
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Hi,
> Peter O'Doherty-2 wrote:
> I think to use it to its full potential I will have to get a USRP.
With USRP you will have all the FUN.
> the prospect of manipulating radio signals via USRP+gnuradio+
> my_audiopackage is exciting. Do you think this is a feasible way to
> approach it?
Sorr
Hi,
If tb is your topblock, you can try the following :
tb.stop()
tb.wait()
self.u.set_inter_rate(xxx)
tb.start()
Don't forget to give us a feed back.
Best Regards,
Firas
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Hi,
Good project. If you successes, give us a feedback.
BTW, you can shift your TX and RX frequencies by using set_tx_freq() and
set_rx_freq() (if you are using Basic TX and RX boards)
Best Regards,
Firas
Attari wrote:
>
> Hi!
> I am implementing freq hopping in gnu radio. My system is li
http://wxglade.sourceforge.net
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http:/
Hi,
Your quote is not being distributed to the community at all. I can only
found them at www.nabble.com.
Regards,
Firas
Attari wrote:
>
> Hi,
> I have solved this error by proper connection between signal processing
> blocks in self.connect method
> as:
>
> Cosine = gr.sig_source_f(250
Hi Matt,
I have some questions (prepared from a while before you have been submitted
USRP2 schematics so excuse me if some of them can be answered from your
schematics).
1) How USRP2 boots? and how the FPGA firmware is loaded?
2) What is USRP2 ADC chip? Is there an auxiliary ADC?
3) What is U
Hi,
When I run gr_plot_fft.py , I get the following error:
File "./gr_plot_fft.py", line 168, in zoom
if(newxlim.all() != self.xlim.all()):
AttributeError: 'tuple' object has no attribute 'all'
My gnuradio rev is 10034, OS is Ubuntu 8.04, scipy and matplotlib was
installed from 8.04 repos
Hi Matt,
Thank you for the answers. I will try to add them to USRP2 FAQ Wiki.
One thing is not clear which is the TX path interpolation.
In RX path:
if ADC sampling = 100MHz,
and if Min decimation = 4
=> max IF bandwidth = 25MHz
=> Max IF Ethernet rate = 4 bytes per sample * 25 MSPS = 100 Mbyt
Hi,
There is comment in optfir.py saying "# FIXME high_passs is broken...".
Can anyone send me an example to regenerate this problem? I have some spare
time and I think I can help in fixing this problem (If it still exist)
Regards,
Firas
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Hi,
Merry Christmas.
I have some simple USRP2 questions:
1) What is the serial setting needed to talk to USRP2 UART (Baudrate,
parity,...etc) ?
2) Is the processing of set_scale_iq done in the host or in the FPGA?
3) What is the purpose of the AeMB processor? What is its clocking s
Hi Everybody,
and Merry Christmas
I received many emails requesting some explanation for
usrp_spectrum_sense.py gnuradio example program. The following link contains
the code with some explanation and one bug fix (in self.max_center_freq
equation):
http://rapidshare.com/files/177960860/usrp_spe
Hi,
I cannot compile the current trunk 10183. I'm using boost 1_37_0. Although
./configure went out with no boost problems as in :
checking for boost >= 1.35... yes
checking whether the boost::thread includes are available... yes
checking for exit in -lboost_thread-gcc42-mt-1_37... yes
checking
Hi,
> hamfred wrote :
> I am trying to use USRP2 in full duplex configuration.
> I use a modified version of rx_streaming_samples.cc with some portion of
> tx_samples.cc for transmission.
> No success at this moment.
>
> Is there anybody having success with this configuration ?
> Is is possible
Hi,
> Yong J. Chang" wrote:
> Hi All,
>
> I've worked on Embedded system and FPGA systems for several years and I
> joined the team working on GNU Radio > project. Because of my lack of
> knowledge about digital communication, I need some help of you all.
>
> The goal is simple PAM modulated co
Hi,
> hamfred wrote:
>
> Thank you Firas.
>
> I have now a quick and dirty patch of the firmware for selection of RX2.
>
> Fullduplex mode seems operational now !
>
> Best regards.
Can you please post your patch ?
Best Regards,
Firas
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. and Don't forget to reduce input signal level. I see distortion in your
graphs. Use -20dBm as input signal level.
Regards,
Firas
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Hi,
>> Firas wrote :
>> Can you please post your patch ?
>>
>> Best Regards,
>>
>> Firas
> hamfred wrote:
> Here is my ugly patch for fullduplex
>
> File gnuradio/usrp2/firmware/lib/db_rfx.c
>
> In struct db_rfx__tx db_rfx__tx = {
>
> Replace
>
> .base.atr_txval = 0,
> .base.atr_rxval
Hi,
I came on strange message/error today when I tried to compile
gr-howto-write-a-block. When I run ./bootstrap I got the following error:
configure.ac:25: required file `./ltmain.sh' not found
My system is Ubuntu 8.10, with Installed and working fine GnuRadio revision
10154.
Best Regards,
Hi,
As per rev 10285, gr-howto compiles and works fine without any problem.
Best Regards,
Firas
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_
Hi,
I want to do a full duplex transmission/reception using USRP2. According to
:
http://www.nabble.com/Re%3A-USRP2-fullduplex-operation-p21420216.html
Hamfred wrote that he did it by patching
gnuradio/usrp2/firmware/lib/db_rfx.c file as follows:
In struct db_rfx__rx db_rfx__rx = {
R
Hi,
FYI, When I upgraded my gnuradio rev from 10368 to 10404, I got the
following warnning message when I run usrp2_fft.py (although the program ran
normally):
usrp2::ctor reset_db failed
My OS is Ubuntu 8.1, USRP2 was fitted with RFX900 daughterboard.
Best Regards,
Firas
--
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Hi,
I came across a very beautiful gnuradio/USRP usage for intentional signal
aliasing application. The authors used USRP2 with its 25MHz digitizing
capability to analyze the full bluetooth 79MHz wide channels by removing the
RFX2400 anti-aliasing filter and disabling the FPGA HBF when working wi
Hi,
Hello everyone,
I am trying to implement some relaying schemes in gnuradio which require
fast response from
the relay. I only know how to use flow graphs at the moment so I made my
code with flowgraphs and
the delay from receiving a packet until I retransmit it is about 10ms. I'm
using
Hi,
Has anyone tried to run USRP1 without PC?
I have an application where a friend supported me with a standalone USRP
FPGA image. I used the PC only to load this image to the USRP using gnuradio
blocks/tools. After that I can plug-off (disconnect) the USB cable from the
PC and USRP continue to
Hi,
Today was a day-mare for me. I had to reformat/install gnuradio on my PC 3
times in few hours.
The story begins when I tried to upgrade my nice working Ubuntu 8.10 OS to
the new 9.04 on my old 3.0GHz C2D system (2G RAM). I had an application
which needs much CPU performance. The application
Hi,
I found this document written by Matt about USRP2:
http://bwrc.eecs.berkeley.edu/Research/Cognitive/usrp-family-09-open.pdf
Best Regards,
Firas
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Hi,
I never used Gnuradio packets transmission blocks and even don't know how
the digital benchmark_?X.py work. But, today when I was explaining GNURadio
for some friends, I noticed that some digital modulations (for example GMSK)
reception can be improved by using a scrambling engine which is so
Hi,
There is a bug in gr_vco_f. It is not working.
http://www.nabble.com/file/p24385994/top_block.py top_block.py is a test
program implemented using GRC.
Best Regards,
Firas
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Hi,
>From about three days, gnuradio.org seems to stop sending the commit files.
For me, the last revision received was 11546.
BR
Firas
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Hi,
Googling USRP2, I found the following PDF:
https://vm-sitev-01.hig.se/filearchive/Centrumbildningar/Radiocentrum/RFMTC09/Dokument/1-1-Hugo-Tullberg_Patrik-Eliardsson-slides.pdf
Best Regards,
Firas
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Hi Community,
Bellow are some SDR books and articles. Hope They are useful.
http://rapidshare.com/files/70781770/Telecommunication_Breakdown_-_Concepts_of_Communication_Transmitted_via_Software-Defined_Radio.pdf
http://rapidshare.com/files/70773907/Software_Radio_Architecture.pdf
http://rapids
Hi,
I have received some complains about copyrights, links removed. Sorry.
Firas
Firas A. wrote:
>
> Hi Community,
>
> Bellow are some SDR books and articles. Hope They are useful.
>
> http://rapidshare.com/files/70781770/Telecommun
&arnumber=788213
a) Error control coding in software radios: an FPGA approach
4) The following book/article are publicly available at:
http://www.spectrumsignal.com/publications/SDR_in_Direction_Finding_RFDesign_0105.pdf
a) SDR_in_Direction_Finding_RFDesign_0105.pdf
Regards,
Firas
Firas A. w
Hi,
After about 20 days of hard working, I prepared an unofficial simple
gnuradio user manual. This draft manual should provide a printable gnuradio
documentation.
Although the doxygen is a great documentation technique to generate
documentation from the source code automatically, it depends o
Eric Blossom wrote:
> Here's my first set of suggestions:
>
> * Submit patches to patch-gnuradio for missing or incorrect
> documentation in the .h or .py files.
Ok. I will start doing it.
>
> * Doxygen can generate XML output. That is, it'll handle the
> automatic extraction for you. From
Hi,
According to previous email-listing, I should find the following file :
~/.gnuradio/config.conf
But the file does not exist. I have Ubuntu 7.10 OS and gnuradio 3.1.1.
According to a note, this file should contains system wide configuration
data for GNU Radio, and we can override any sett
) The source, Word document version can be downloaded from :
http://rapidshare.com/files/72169433/Word-Source-Code-Simple-Gnuradio-User-Manual-v1.0.rar
3) The web based version can be downloaded from :
http://rapidshare.com/files/72169322/Web-based-Simple-Gnuradio-User-Manual-v1.0.rar
Regards,
Hi,
In my PC, Intel Core2 Due (as well as my laptop), I cannot enable real time
scheduling. Both has gnuradio 3.1.1.
Both has Ubuntu 7.10. I remember (before 6 months), that my laptop was able
to enable the real time when it was running gnuradio 3.0.3 on Ubuntu 7.04.
Any help please?.
Regards
Hi,
When you installed gnuradio, did you do "sudo make install" ?
Firas
Fasika Alemayehu wrote:
>
> I am using Ubuntu 7.10.
>
>
> -
> Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it
> now.
> ___
This question has nothing related with the subject title "USRP 2"
regards,
Firas
Clark Pope wrote:
>
>
> Has anyone experimented with the digital compensation of the I/Q imbalance
> from direct conversion asics like the one in the dbsrx? I'm interested in
> the algorithms employed and how suc
Eric Blossom wrote:
>
> On Mon, Dec 10, 2007 at 06:38:49PM -0800, Brook Lin wrote:
>>
>> I have figured out why it failed to set freq. Now my question is still
>> how
>> can I get one GUI with one plot and show all the spectrum, say all FM
>> stations.
>>
>> Thanks
>
>>Brook, you'll have to l
Hi,
If :
u = usrp.source_c(0)
then if I passed the usrp source instance (u) to a gnuradio block, what is
the class (type) that should be used in the c++ code to receive (define)
this instance ?
I thought at first we can define it as a class of usrp_standard_rx, but I
was totally wrong.
What
What is your OS, gnuradio version ?
Firas,
Brook Lin wrote:
>
> Hi All,
>
> I just ran tx_voice and rx_voice.And I wanted to transmit a music and
> receive it using Basic RX/TX. However, I got the error:
> $ sudo ./tx_voice.py -f 30M -I music.pcm -T A -v
gr_fir_fff: using SSE
> bits per
What is your OS Type? (Fedora, Ubuntu, .)
Firas
Brook Lin wrote:
>
> Hi Firas, I am using gnuradio3.1.1
>
>
> Firas A. wrote:
>>
>> What is your OS, gnuradio version ?
>>
>> Firas,
>>
>>
>> Brook Lin wrote:
>>>
>
Hi,
use "plughw:0,0" as the default audio sink device as explained in :
http://www.nabble.com/Audio-Sink-Help-to10675997.html#a10690757
http://www.nabble.com/GNURadio-Example-Suggestions-to2888951.html#a2920566
Firas,
Brook Lin wrote:
>
> I am running gnuradio3.1.1 on 64-bit machine, using
Dear Eric,
Sorry for delayed reply, but I was very busy.
>Eric Wrote :
>Hi Firas,
>
>Thanks for working on the documentation.
Your are welcome, as promised before, I will try to keep my enhancing
gnuradio documentation job active for me.
>Please don't send large attachments (> 10KB) to the lis
input
signal was -20dBm and the gain was 26 dB which gave this maximum SFDR).
I hope we use these experiments to enhance our magnificent USRP.
Best Regards,
Firas A.
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Hi,
I think we are trying to do something different. We are trying to
investigate the possibility of increasing USRP dynamic range by modifying
some USRP FPGA stages.
By the way, what was the equation used to calculate the ADC output in dB in
you graph?
Firas
Jens Elsner wrote:
>
> I noticed
MHz sine wave to do the tests. To simulate the dbsrx LO
offset I cheated the usrp_fft.py set_freq() function as follows :
r = self.u.tune(0, self.subdev, target_freq+400)
self.u.set_rx_freq(0,400)
Firas A.
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Hi,
> I believe that Matt was referring to using max-strength I & Q inputs
> to the Basic Rx along with an Rx mux setting that routes both ADC
> outputs into the same DDC. (The default config with the Basic Rx
> feeds a constant zero into the Q DDC input).
>
> Eric
I believe Matt was right ab
Hi,
Checkout the USRP measurement pointed by :
http://www.nabble.com/USRP-Dynamic-Range-and-8-Bit-Problem-to14471573.html#a14484747
May be it will answer some of your questions. Keep in your mind that USRP is
not a measurement device. It is an SDR peripheral device. If you want to use
it as a m
documentation changes to the truck and
not to wait until all has been finished.
Best Regards,
Firas
Eric Blossom wrote:
>
> On Mon, Dec 17, 2007 at 11:15:21AM -0800, Firas A. wrote:
>>
>> Dear Eric,
>>
>> 1) The complete attachments (files) for the new m
finish patching the
GNU Radio source code documentation.
Firas A.
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Hi,
I wrote a USRP based RF Repeater code
http://www.nabble.com/file/p15199195/repeater.py.tar.gz repeater.py.tar.gz
before may be 8 months which is connecting source->Destination in IF level.
Although the input parameters should be entered by hand and not from the
command line, the code was wo
Hi,
> Jonhathan wrote :
>
> Please only post to the list if the problem continues even after using
> trunk revision >= 7461; we're looking for exceptions at this point.
As with r7554, GNU Radio still have the swig problem with top_block(). The
flow_graph does not have this problem. I'm using Ubu
Hi,
Great. It works perfectly now.
Best Regards,
Firas
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Hi,
It seems that there is a bug in gnuradio 3.1.1 (and up to today latest truck
revision) in the USRP rbf standard file. When trying to change the
interpolation rate dynamically, the output get distorted badly even if the
program restore the started interpolation value. I have an old gnuradio
script shows what you've found, please also enter it in the
> ticket.
I will do it.
Regards,
Firas A.
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Hi,
Check :
www.gps-sdr.com
Regards,
Firas
Paul Creekmore wrote:
>
> Faisal,
>
> I'm at Purdue University working toward using the USRP for GNSS
> applications. Check my understanding: are you wanting to use the USRP
> to record, say, L1 band samples directly to a data file? Would you
Hi,
The suggested new wiki page is a good step and adds something to the
projects. I just want to write this old famous words hoping to start a view
to guide the new project users who might start contributing to the project
itself soon after they understand it.
The words says, "Experience I ca
Hi,
Is it safe to use standard distributions (Fedora, Ubuntu,Mandriva,) in
embedded applications ?
What about sudden system power off without proper shutdown?.I think it may
lead to OS damage.
Is there a procedure (tips) to modify a standard Linux distribution to work
in embedded systems?
Hi,
New USRP Documentation (Whenever I become sick and stay at home, I use my
time to write some GnuRadio documentation).
I hope from Gnuradio experts to examine this document and send to me a
corrected information especially when the "#FIXME#" is located and this
feedback will be highly apprec
Hi,
> Rakesh Perter wrote :
>
> Hello Firas...
>
> GREAT EFFORT !!! You really deserve a big round of applause from the
> whole community !!!
> it will be great if we can merge this to the Wiki, so that folks around
> can easily search around
>and also update it regularly (easily). I guess it
Hi,
> Rakesh Peter wrote:
>
> Hey Folks
>
>The USRP Documentation by Firas has been now wiki-fied at
> http://www.gnuradio.org/trac/wiki/UsrpFAQ
Rakesh this is a great and nice work.
> Its now upto everyone in the community to take it up and contribute to
> make
> it bigger and better !
Hi,
To process data in C++ coming from the USRP in real time, See:
http://gnuradio.org/trac/wiki/UsrpFAQ/CppInterface
Regards,
Firas
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Hi,
See The question about How RF tuning is accomplished in daughterboards? at:
http://gnuradio.org/trac/wiki/UsrpFAQ/DBoards
Firas
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Hi,
The official GnuRadio documentation at [
http://gnuradio.org/doc/doxygen/hierarchy.html ] is old and not updated from
a very long time.
Also the un-official GnuRadio documentation at
[http://www.ece.jhu.edu/~cooper/SWRadio/Simple-Gnuradio-User-Manual-v1.0.pdf]
is old too and not updated fro
ore
attractive.
I think your tutorial needs some urgent surgery, unfortunately is_running()
is no longer in use (see http://gnuradio.org/trac/changeset/8689)
Best Regards,
Firas A.
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Hi,
See:
http://www.ettus.com/custom.html
Firas
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> George Nychis wrote:
>
> Here, I made you a quick GNU Radio + Octave guide:
> http://gnuradio.org/trac/wiki/Octave
>
> Read the section on parsing, then plotting.
>
> George
Hi,
Very helpful, thanks.
Regards,
Firas
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Hi,
1) Just use USRP FPGA file (firmware) that contains no halfband filter as in
the following example:
decim = 4
set_fpga_filename="std_4rx_0tx.rbf" # This FPGA firmware contains 4 Rx paths
without halfbands and 0 tx paths.
u = usrp.source_c(0, decim_rate=decim, fpga_filename=set_fpga_filename
Hi,
I thing there is a bug (defect) in gnuradio core. Checked with svn revisions
7311 and 9036, on CoreDue system with Ubuntu 8.04, and USRP + RFX900, it
seems that we cannot run TX flow graph properly more than one time. If we
started it more than one time, we will have a very distorted TX sig
Hi,
1) Great Work.
2) I think screen refresh (drawing times) is too high (on my system) that
leads to flickering.
3) Compiling a fresh trunk copy (rev 9311) on my C2D running Ubuntu 8.04,
the running of usrp_fft.py for the first time leads to the following error :
File "./usrp_fft.py", line 3
Hi,
> Johnathan Corgan wrote :
>
> What directory were you running 'usrp_fft.py' from?
I was running from gr-utils/src/python/
Regards,
Firas
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S
Hi,
Our eyes cannot flicker, this is a paradise summer, the developments goes
logarithmic (Multiprocessor Scheduling, OGL plotting, USRP C++ daughterboard
drivers,...). Many thanks to developing team, I wish we have the ability to
help you.
Best Regards,
Firas
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Hi,
> Dimitris Symeonidis wrote:
>
> Is there any guide to upgrading old code to work with the new GnuRadio
> blocks?
To convert to the new blocks just change the python words
From: To:
-- -
fg
Hi,
Has anyone been able to install boost 1.35 or 1.36 on Ubuntu OS system?
Regards,
Firas
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Hi,
> nina sweeney wrote:
>
> Does anyone know of software that has been developed for automatic
> modulation detection?
> Thanks!
>
> Nina
It is better if you look for automatic signal identification or
classification. See:
http://www.cs.umd.edu/~clancy/docs/sdr07-detect.pdf
Regards,
Fir
Hi Community,
I want to share my 2 cents too,
> George Nychis Wrote:
>
> I agree, svn+trac is the way to go here. It's what everyone is already
> familiar with, and it works great.
I agree too.
> I was thinking that the SVN structure should be something like:
> /
> /project_name
> /project_
Hi,
> Santi Ortega wrote :
>
> ok, so I have to modify this program to show in a Frame the results I
> want, haven't I?
Yes, OR, you can wait for me to write a detailed explanation (may be in two
weeks) about "usrp_spectrum_sense.py".
I think the understanding of this program is very important
Hi,
1) Are you feeding RF2400 directly from signal generator or by Antenna ?.
Remember that the ISM 2.4GHz band is occupied by wireless devices.
2) Is your RFX2400 works normally with usrp_fft.py ? Can you see clearly the
signals you generate in it at the specified frequencies ?. Try to Adjust
Hi,
This is not the standard usrp_spectrum_sense.py. Is the
"grcomac.bin_statistics_f" same as gr.bin_statistics_f or modified one?. Why
you are not upgrading from gr_flow_graph() to top_block()?. I cannot run the
code in my system to help you.
Regards,
Firas
--
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Hi,
1) use "--tune-delay" with 10e-3
2) Uncomment :
#self.connect(self.u, s2v, fft, c2mag, log, stats)
3) Comment:
self.connect(self.u, s2v, fft, c2mag, stats)
4) Change the line :
self.max_center_freq = self.min_center_freq + (nsteps * self.freq_step)
to be :
self.max_center_freq = self.min_
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