[Discuss-gnuradio] Recover the signal

Dear all, I tried to implement the frequency hopping and I did it, But I have one problem. After stored the signal in dat file and tried to separate the frequencies in matlab "it is imposible to do that". Can you tell me please if there is some block in GNUradio which can I use to store the

Re: [Discuss-gnuradio] Recover the signal

Hi Maksim, you're right, the raw sample data can't contain any sideband information such as to what the USRP was tuned to. Maybe you just want to use the "tag debug" block to print out the sample offsets at which an rx_freq tag was seen, and parse that textual information. Best regards, Marcus

Re: [Discuss-gnuradio] undefined symbol error

Thank you for the reply... flat_fader_impl.h file is in lib I am not getting where i did mistake. Thanks again for your time. On Thu, Oct 15, 2015 at 3:35 PM, Gisle Vanem wrote: > when i am running QA test for a new module named "channels_w_tags" there >> is this error >>

Re: [Discuss-gnuradio] pybombs and make, swig

On Wed, Oct 14, 2015 at 6:55 PM, Chris Kuethe wrote: > patches are welcome, if you are able to test that other versions and > package sources work. > > On Wed, Oct 14, 2015 at 3:47 PM, Achilleas Anastasopoulos < > anas...@umich.edu> wrote: > >> May I ask why pybombs

Re: [Discuss-gnuradio] One more question about GNU Radio cross compilation

On Thu, Oct 15, 2015 at 10:55 AM, West, Nathan wrote: > On Thu, Oct 15, 2015 at 10:40 AM, Douglas Geiger < > doug.gei...@bioradiation.net> wrote: > >> >> >> On Wed, Oct 14, 2015 at 4:38 AM, Paul TT wrote: >> >>> Hello, >>> >>> I'm trying to build

Re: [Discuss-gnuradio] Why are tests getting run twice?

My sink block captures data in fixed size timestamped files. If the test runs twice, when I go to check, I have twice the amount of data captured as what I read from the file source. I was looking everywhere for bugs before I concluded the test was being run twice by the test framework, but now

Re: [Discuss-gnuradio] Audio bandwidth

On Wed, Oct 14, 2015 at 2:47 PM, Hoang Nguyen Tran wrote: > Hi all, > > I have question related to audio bandwidth cutoff. > Yesterday, I received very good signal from STRaND satellite 9600 bps, FSK > modulation. > I used audio sink to record the signal then used it for

Re: [Discuss-gnuradio] Recover the signal

On Thu, Oct 15, 2015 at 7:54 AM, Marcus Müller wrote: > Hi Maksim, > > you're right, the raw sample data can't contain any sideband information > such as to what the USRP was tuned to. > Maybe you just want to use the "tag debug" block to print out the sample > offsets

Re: [Discuss-gnuradio] Recover the signal

Hi Tom, hi Maksim, problem being that afaik we don't have stuff to parse the metadata file sink data to something matlabby. But maybe I'm wrong and someone already went and did the specific task of using the python module[1] to first parse the file and then the segment headers, and push them into

Re: [Discuss-gnuradio] Audio bandwidth

Hi Marcus, I put a variable for that, and usually I put in 24kHz for signal bandwidth in Low Pass filter. On Thu, Oct 15, 2015 at 10:46 AM, Marcus Müller wrote: > Hi Hoang, > > are you sure you want to reduce the FM signal bandwidth to 6kHz in the Low > Pass

Re: [Discuss-gnuradio] One more question about GNU Radio cross compilation

On Thu, Oct 15, 2015 at 10:40 AM, Douglas Geiger < doug.gei...@bioradiation.net> wrote: > > > On Wed, Oct 14, 2015 at 4:38 AM, Paul TT wrote: > >> Hello, >> >> I'm trying to build GNU Radio using a toolchain from Mentor Graphics >> (arm-none-linux-gnueabi-). >> Some gnuradio

[Discuss-gnuradio] Why are tests getting run twice?

Hello, I generated a simple file sink block along with qa python tests. When I ran the test cases, I noticed that the test tool runs the test twice. Code is small enough that I am taking the liberty of posting it here: class qa_capture_sink (gr_unittest.TestCase): def setUp (self):

Re: [Discuss-gnuradio] Audio bandwidth

Hi Hoang, are you sure you want to reduce the FM signal bandwidth to 6kHz in the Low Pass filter? Best regards, Marcus On 10/15/2015 04:38 PM, Hoang Nguyen Tran wrote: > Hi Tom, > Thank for replying, Below is my narrow band fm receiver base on nbfm > rx from http://www.oz9aec.net/ > I was able

Re: [Discuss-gnuradio] Why are tests getting run twice?

On Thu, Oct 15, 2015 at 9:39 AM, M. Ranganathan wrote: > Hello, > > I generated a simple file sink block along with qa python tests. When I > ran the test cases, I noticed that the test tool runs the test twice. Code > is small enough that I am taking the liberty of posting it

Re: [Discuss-gnuradio] One more question about GNU Radio cross compilation

On Wed, Oct 14, 2015 at 4:38 AM, Paul TT wrote: > Hello, > > I'm trying to build GNU Radio using a toolchain from Mentor Graphics > (arm-none-linux-gnueabi-). > Some gnuradio dependecies i have builded manually from source using this > toolchain. > > > > export

Re: [Discuss-gnuradio] gr-mer or a few digital modulation error measurements blocks

On Tue, Oct 13, 2015 at 2:39 PM, Federico Larroca wrote: > Hi all, > > Together with our ISDB-T oot, we've written some blocks which we found > were missing in gnuradio, which basically measure some fairly common > indicators in digital modulation (mer, ste, etc.). Since they

Re: [Discuss-gnuradio] Installation with pybombs: still missing python thrift libraries

I'm building gnuradio right now on Arch Linux to get thrift working. Arch official repositories only have a 'thrift' package [1], which was not sufficient. I had also to install from the Arch User Repository, 'python2-thrift' [2]. Now I get the correct cmake output. I have never used Fedora,

Re: [Discuss-gnuradio] Installation with pybombs: still missing python thrift libraries

With some help from the thrift maillist I figured out what the problem was: thrift requires "trial" and this is not part of the pybomb recipies, so thrift fails silently. So after installing "trail" the installation of thrift 0.9.3 manually from the latest source was a breeze. After configuring

Re: [Discuss-gnuradio] Installation with pybombs: still missing python thrift libraries

here is the output of configure for thrift: Building C++ Library . : yes Building C (GLib) Library : yes Building Java Library : no Building C# Library .. : no Building Python Library .. : no Building Ruby Library : no Building Haxe Library : no

Re: [Discuss-gnuradio] Installation with pybombs: still missing python thrift libraries

Clearly I'm not running on a redhat-like system so I don't have any more specific advice to offer. What I can suggest is spend some time figuring out why the python library isn't able to build. Have a look at the config log, grep for errors and google for them, figure out if you're missing some

Re: [Discuss-gnuradio] Installation with pybombs: still missing python thrift libraries

I saw something like this at grcon and it was due to an incorrectly set PYTHONPATH. Thrift installs into .../site-packages, gnuradio installs into .../dist-packages - make sure both of those are in there. On Thu, Oct 15, 2015 at 1:14 PM, Achilleas Anastasopoulos wrote: > I

[Discuss-gnuradio] Boost logging

Hello all, I am trying to log using the boost logging library from my block. I specify the following cmake flags when generating the makefile: cmake ../ -DCMAKE_EXE_LINKER_FLAGS="-lboost_log -lpthread -lboost_log_setup" -DCMAKE_SHARED_LINKER_FLAGS="-lboost_log_setup -lboost_log -lpthread"

Re: [Discuss-gnuradio] Installation with pybombs: still missing python thrift libraries

I wish that were the case. However, on fedora, gnuradio installs on site-packages. In any case, there are NO dist-packages on my system. also from the output of configure (for thrift), it seems that python libraries are NOT even configured for building: thanks Achilleas On Thu, Oct 15, 2015 at

Re: [Discuss-gnuradio] Second & Fourth Moment Noise Estimation (M2M4)

On Thu, Oct 15, 2015 at 1:49 PM, Richard Bell wrote: > I figured out what was causing my numbers to be incorrect using M2M4. I > was overlooking the fact that I was injecting noise at sample rate, but > estimating noise power and a decimated rate. Once I took this into

Re: [Discuss-gnuradio] Second & Fourth Moment Noise Estimation (M2M4)

Hey Tom, I just re-read the section around eq 39, and you are right. I looked at 39 and thought he setup the ratio, Eq37/Eq38, but that's not what he did. It's clear now and you're code is correct. Sorry about that. Rich On Thu, Oct 15, 2015 at 10:57 AM, Tom Rondeau wrote:

[Discuss-gnuradio] pyBombs

Hello, My Gnuradio installation was made using the script build-gnuradio available on gnuradio.org. Now, I'm interested about pyBombs, but I can't lose the installation I made here in my Ubuntu. My doubt is: do I have to uninstall my Gnuradio to install/run pyBombs? The method to get pyBombs

[Discuss-gnuradio] Passing GUI widgets into hier block with parameters

Hello I have a question. I have created many hier blocks, and I would like to pass into sam values from GUI but when state is changing, it doesnt correspond to value inside a hier block. this is my flowgraph: http://postimg.org/image/qgaf705q1/a9569ee5/ With GUI Chooser I would like to change

Re: [Discuss-gnuradio] pyBombs

Not sure, but it's easy to try non-destructively. check out pybombs into ~/pybombs create ~/gnuradio-pybombs use pybombs to install gnuradio into ~/gnuradio-pybombs source ~/gnuradio-pybombs/setup_env.sh (do gnuradio stuff) Because you're installing into your home directory, you won't need root

[Discuss-gnuradio] Saving data

Hello, I have to sum a lot of samples. At the end of the flowgraph, I need to save the data I got in a file (not a .grc file) like a text one, for example. I need to see the values, because the graphical way will not present the information I need. Please, do you know how to do this? PS: if the

Re: [Discuss-gnuradio] Why are tests getting run twice?

On 15.10.2015 07:05, Tom Rondeau wrote: > The first test outputs to the console. The second output to the XML > file, which we use in our CI system to monitor behavior. The testing > system, that I know of, doesn't allow for both at one time. > > Why do you care if it runs once or twice? If it

Re: [Discuss-gnuradio] Second & Fourth Moment Noise Estimation (M2M4)

I figured out what was causing my numbers to be incorrect using M2M4. I was overlooking the fact that I was injecting noise at sample rate, but estimating noise power and a decimated rate. Once I took this into account, the estimate was in line with what I expect. I have not reconciled the

Re: [Discuss-gnuradio] Decoding constellation (0, 1-1) using gnuradio

Hi Marcus, others, Actually things are not working on my side. I would be thankful if you could give some suggestion. The points on the constellation diagram come to be at max in an elipse of half major axis length = 0.02, while my constellation object takes the decision on 1+0j, -1+0j, 0+0j -

Re: [Discuss-gnuradio] Audio bandwidth

Hi, Regarding to this problem, I tried to use UDP sink to replace Audio sink or Wave file sink, then try to receive audio in on another computer with decoding software by VLC. When I run the VLC with command : vlc --demux=rawaud --rawaud-channels=1 --rawaud-samplerate=48000 udp://@:7355 I was