[Discuss-gnuradio] Mutex lock error

Hi, Today while donig some random testing, I had this error in complex_to_mag block. "boost unique_lock has no mutex: Operation not permitted." What could be the reason? Regards, Usman ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https:

Re: [Discuss-gnuradio] Frequency hopping in gnu radio

Hi Atif, You can use combination of timed commands, and set_center_freq to do hopping. See following links https://files.ettus.com/manual/classuhd_1_1usrp_1_1multi__usrp.html#a191b78b00d051d3d51c2f719361c1fb5 https://gnuradio.org/doc/doxygen/classgr_1_1uhd_1_1usrp__block.html#abee715a8a09943f37

Re: [Discuss-gnuradio] GRCON2017

Hi, I could not find them on youtube? Regards, Usman On Tue, Sep 19, 2017 at 7:01 AM, Ben Hilburn wrote: > Presentations are now live: https://www.youtube.com/channel/ > UCceoapZVEDCQ4s8y16M7Fng > > There are some missing, but we'll get them up as soon as we get them. Same > with the talk reco

Re: [Discuss-gnuradio] TDMA based Multiple Access Channel

You can use tags, tx_time, tx_sob and tx_eob, for implementing TDMA based system. For this to work you should have a common time source for both transmitters like a GPSDO or MIMO cable if they are colocated. -- Usman On Wed, Jun 14, 2017 at 10:38 AM, Ammar Mahmood wrote: > Hi, > > I am using a

[Discuss-gnuradio] Audio issues on BBB

Hi, I am using GNU Radio on beaglebone black (BBB). I have transmitter and receiver flowgraph with audio sink audio source. When I run the flowgraphs on laptop or desktops I receive all the data packets correctly. But when I run either receiver or transmitter flowgraph on BBB there are intermitten

Re: [Discuss-gnuradio] [USRP-users] USRP command port

; good luck, > > steven > > > > Steven Knudsen, Ph.D., P.Eng. > www. techconficio.ca > www.linkedin.com/in/knudstevenknudsen > > Du bist die Aufgabe. Kein Schüler weit und breit. *- Franz Kafka * > > On Apr 20, 2017, at 09:32, Usman Haider via USRP-users < >

[Discuss-gnuradio] USRP command port

Hi, I want to know is it possible to send the "set_time_next_pps" and "get_time_last_pps" commands using command port of the usrp sink block? -- Usman ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/dis

Re: [Discuss-gnuradio] GNU Radio on Beaglebone black

and so on. But: It's easier > to look at each package in a list and quickly decide whether you'll need it > or not than to research all packages you need to install yourself. > > > Best regards, > Marcus > > > On 22.03.2017 05:34, Usman Haider wrote: > > >

Re: [Discuss-gnuradio] GNU Radio on Beaglebone black

On Wed, Mar 22, 2017 at 1:46 PM, Cinaed Simson wrote: > On 03/21/2017 09:34 PM, Usman Haider wrote: > > > > > > On Wed, Mar 22, 2017 at 2:52 AM, Dennis Glatting > <mailto:gnura...@pki2.com>> wrote: > > > > On Tue, 2017-03-21 at

Re: [Discuss-gnuradio] FEC: Convolutional Encoder Gnuradio and Matlab: different results

Hi Emanuel, Maybe you find following thread useful. http://lists.gnu.org/archive/html/discuss-gnuradio/2015-09/msg00404.html -- Usman On Wed, Mar 22, 2017 at 1:07 PM, wrote: > Hi together, > > > > I’m using the FEC Async Encoder with the CC Encoder Definition. > Input/Output are unpacked and

Re: [Discuss-gnuradio] GNU Radio on Beaglebone black

On Wed, Mar 22, 2017 at 2:52 AM, Dennis Glatting wrote: > On Tue, 2017-03-21 at 22:59 +0500, Usman Haider wrote: > > Hi, > > > > I am currently building GNU Radio 3.7.10.1 on Beaglebone black > > running Debian 8.6. I have disable some components for testing and

Re: [Discuss-gnuradio] GNU Radio on Beaglebone black

idea to build software *on* an > embedded device itself; you'd typically try to get your software built on a > "proper" PC, because compiling C++ is a very RAM and disk IO intense > operation, and takes O(forever) time on a Beaglebone. > > Best regards, > > Marcus

[Discuss-gnuradio] GNU Radio on Beaglebone black

Hi, I am currently building GNU Radio 3.7.10.1 on Beaglebone black running Debian 8.6. I have disable some components for testing and to speed up the process. After installing the dependencies when I run cmake I am getting following messages. Are these messages okay? Do I have to pass any flags t

[Discuss-gnuradio] GNU Radio on Beaglebone black

Hi I am currently building GNU Radio 3.7.10.0 on Beaglebone black. When I run cmake I am getting ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] UHD and GNU Radio on Beaglebone

e to > handle 25MS/s with minor tweaking. > > > Regards, > Nate Temple > > > > On Mar 7, 2017, at 10:22 PM, Usman Haider > wrote: > > > > > > > > On Sat, Mar 4, 2017 at 4:24 AM, Dennis Glatting > wrote: > > On Fri, 2017-03-03 at 13:51 -0500, Marc

Re: [Discuss-gnuradio] UHD and GNU Radio on Beaglebone

On Sat, Mar 4, 2017 at 4:24 AM, Dennis Glatting wrote: > On Fri, 2017-03-03 at 13:51 -0500, Marcus D. Leech wrote: > > On 03/03/2017 12:59 PM, Dennis Glatting wrote: > > > > > > On Fri, 2017-03-03 at 18:33 +0500, Usman Haider wrote: > > > > > > > &

[Discuss-gnuradio] UHD and GNU Radio on Beaglebone

I want to build UHD and GNU Radio on Beaglebone black to run an application using N210s. Has anyone tried this before? Is there a guide that I can follow? Thanks! -- Usman ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/

Re: [Discuss-gnuradio] Error Running Flowgraph

I did $ pybombs -vv refetch gnuradio $ git pull (inside gnuradio directory) $ pybombs -vv rebuild gnuradio Issue solved. Thanks. -- Usman On Tue, Jan 31, 2017 at 12:44 PM, Usman Haider wrote: > Hi Kartik, > > Thanks. How can I do that using PyBombs? > > > -- > Us

Re: [Discuss-gnuradio] Error Running Flowgraph

Regards, > Kartik Patel > > > > On Tue, Jan 31, 2017 12:05 PM, Usman Haider usmanhaide...@gmail.com wrote: > >> I have a fresh install of GNU Radio with PyBombs. >> >> emb@sdr-emb:~/rfnoc$ gnuradio-config-info -v >> v3.7.10.1-202-g6225e5d4 >> >&g

[Discuss-gnuradio] Error Running Flowgraph

I have a fresh install of GNU Radio with PyBombs. emb@sdr-emb:~/rfnoc$ gnuradio-config-info -v v3.7.10.1-202-g6225e5d4 I am trying to run examples that come with GNU Radio. I am getting following errors === Generating: '/home/emb/Documents/grc_examples/digital_freq_lock.py' Executi

Re: [Discuss-gnuradio] PyBombs installation issue

html>from your OS's package > manager if you don't have them, yet. > > Cheers, > Ben > > On Tue, Jan 24, 2017 at 1:02 AM, Usman Haider > wrote: > >> Hi, >> >> What is recommend to fix the issue? Should I go for source install >> inste

Re: [Discuss-gnuradio] PyBombs installation issue

Hi, What is recommend to fix the issue? Should I go for source install instead of PyBombs? -- Usman On Fri, Jan 20, 2017 at 10:58 AM, Usman Haider wrote: > Hi Martin, > > I see from output of the command that a lot of components are

Re: [Discuss-gnuradio] PyBombs installation issue

where it fails during cmake. > > Cheers, > Martin > > On 01/18/2017 10:35 PM, Usman Haider wrote: > > Hi Martin, > > > > Yeah. Please find below the output > > > > $ ls ~/rfnoc/bin > > > > gnuradio-config-info > > uhd_cal_tx_iq_ba

Re: [Discuss-gnuradio] PyBombs installation issue

oc/bin > > look like? > > Or > > $ pybombs inv > > ? > > On 01/18/2017 02:10 AM, Usman Haider wrote: > > Hi Nicolas, > > > > Thanks for your time. I did that but the result is same. I can run > > > > |$|uhd_images_downloader > > but &

Re: [Discuss-gnuradio] PyBombs installation issue

you should be able to start > gnuradio-companion. Please have in mind that you have to set up this > environment in every new shell you start. > > Please let us know if this doesn't work so that we can look further into > it. > > Cheers, > > - Nicolas > > On Wed

Re: [Discuss-gnuradio] PyBombs installation issue

hen; github or your network might have > had problems :) > > Cheers, > > Marcus > > On 17.01.2017 08:01, Usman Haider wrote: > > Hello Marcus, > > I am surprised the following command ran successfully. > > $ pybombs -vv recipes add gr-recipes git+https://githu

Re: [Discuss-gnuradio] PyBombs installation issue

ot;? > > Best regards, > > Marcus > On 01/16/2017 12:55 PM, Usman Haider wrote: > > Hello Nicolas, > > Thanks for your reply. I have sufficient disk space, more than 400 GB, so > that is not an issue. I do not have any .gitconfig file in my home > directory. I can d

Re: [Discuss-gnuradio] PyBombs installation issue

gt; just as a test that your git is working as expected. > > Please let us know if you find out something with this hypothesis I > mentioned. > > Cheers, > > - Nicolas > > > > > On Mon, Jan 16, 2017 at 9:46 AM, Usman Haider > wrote: > >> I am following this g

[Discuss-gnuradio] PyBombs installation issue

I am following this guide to get started with RFNoC. I am using Ubuntu 14.04 and I ran following commands $ sudo apt-get install git $ sudo apt-get install python-setuptools python-dev build-essential $ sudo easy_install pip $ sudo pip install git+https://github.com/gnuradio/pybombs.git When I r

[Discuss-gnuradio] Magnitude dips in transmission

Hi, I am using Gnu Radio 3.7.8 with uhd 003.008.005 and umtrx v2.2. When I use the attached GRC flowgraph I see random drops in the magnitude of the transmission and also a carrier wave. Please see the link below for the output. I searched on the internet but could not find anything. I used a diff

Re: [Discuss-gnuradio] Polyphase Clock Sync for Bursts

Yes, you are right here. "The time_est tag can be used to adjust the sampling timing estimate of any downstream synchronization blocks and is currently implemented by the gr::digital::pfb_clock_sync_ccf block." --

Re: [Discuss-gnuradio] Rectangular Pulse Shape w/ PFB Clock Sync

t up, I would argue his results are still > pretty good. They might also be improved by increasing the length of the > filter and maximizing the rolloff factor, but I’m not sure what specific > taps he used in his implementation. > > > > Hope this helps, > > Neil > > &g

Re: [Discuss-gnuradio] Rectangular Pulse Shape w/ PFB Clock Sync

Hi Neil, Can you please share some more details on how the end result could be same? Regards, Usman On Wed, Sep 28, 2016 at 6:41 PM, Neil Schafer wrote: > I haven’t tried it myself, but wouldn’t using a raised cosine or Gaussian > filter for your taps still provide some pulse shaping for the

Re: [Discuss-gnuradio] Asking USRP to tag

e value is irrelevant. Example: > "pmt.dict_add(pmt.make_dict(), pmt.intern("tag"), pmt.from_double(0.0))" in > a message strobe block will cause UHD USRP Source blocks to periodically > retag the stream. > > On Thu, Sep 8, 2016 at 1:30 PM, Usman Haider > wrote: >

Re: [Discuss-gnuradio] Asking USRP to tag

attached to which sample, containing which > data? Also, which USRP are you using? > > > Best regards, > Marcus > > > On 09/07/2016 12:33 PM, Usman Haider wrote: > > I want USRP to insert a new tag on the stream. I read earlier somewhere > that it is possible now us

[Discuss-gnuradio] Asking USRP to tag

I want USRP to insert a new tag on the stream. I read earlier somewhere that it is possible now using some command. Can someone point to some example code ? -- Usman ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailma

Re: [Discuss-gnuradio] Implementing timed transmission: UHD API or Stream Tags?

Hi Martin, > > Appreciate your reply to my questions. I agree that I cannot do better > than a clock cycle, so that is settled. Let us say that I use GPSDO for my > reference and I wish to transmit at GPS time t. Is it possible to control > the transmit time to within (t plus/minus 1 clock cycle)?

Re: [Discuss-gnuradio] Draft Proposal GSoC: Offline Analysis and Visualization Tools

n you provide > some examples and/or mockups? > > M > > On 03/24/2016 01:11 PM, Usman Haider wrote: > > Hi Nathan, > > > > I appreciate the time you spent reading the draft and providing such > > detailed feedback. I have uploaded some related MATLAB c

Re: [Discuss-gnuradio] Draft Proposal GSoC: Offline Analysis and Visualization Tools

more than a single sentence that says "I did a matlab > simulation once in a class and it was cool", but much less than a college > admissions essay on why DSP will save the world. > > Looking forward to the next draft (and hopefully faster turnaround), > -Nathan > > P

Re: [Discuss-gnuradio] Draft Proposal GSoC: Offline Analysis and Visualization Tools

ange in time-axis of time domain plot. > > I'd say that Week 6 contains the a significant of the core deliverable > of your GSoC proposal, whilst week 8 really has only two features to > complete. Maybe you can balance that timeline a little more; not all > things take the

Re: [Discuss-gnuradio] Draft Proposal GSoC: Offline Analysis and Visualization Tools

I have not get any feedback on this yet. I hope I have not missed anything important? Please, provide feedback on this. Regards, Usman On Mon, Mar 21, 2016 at 11:45 PM, Usman Haider wrote: > I have added lambda expression in deliverables based on Tim's comments. > This will al

Re: [Discuss-gnuradio] Draft Proposal GSoC: Offline Analysis and Visualization Tools

07 PM, Usman Haider wrote: > Hi Community, > > I have made my proposal for the subject GSoC idea. Please have a look and > give feedback. Thanks for your time. > > https://github.com/UHaider/GSoC/blob/master/GSOC%20Proposal.pdf > > Regards, > Usman >

[Discuss-gnuradio] Draft Proposal GSoC: Offline Analysis and Visualization Tools

Hi Community, I have made my proposal for the subject GSoC idea. Please have a look and give feedback. Thanks for your time. https://github.com/UHaider/GSoC/blob/master/GSOC%20Proposal.pdf Regards, Usman ___ Discuss-gnuradio mailing list Discuss-gnurad

Re: [Discuss-gnuradio] GSoC Interest in Project: Offline Analysis and Visualization Tools

parameters sounds great. I am doing brainstorming on it. Your first idea is also good but I am currently trying to avoid streaming in offline analysis tool. However, I'll also give it a detail thought. Regards, Usman > From: Tom Rondeau mailto:t...@trondeau.com>> > Subject: Re: [Dis

[Discuss-gnuradio] GSoC Interest in Project: Offline Analysis and Visualization Tools

Hi, After going through all the GSoC project ideas and relevant GSoC pages. I concluded that I should apply for the following project because it matches my skills most. In this way, I can make my contribution to GnuRadio maximum. *Offline Analysis and Visualization Tools ( Mentor Tim O'Shea)*

Re: [Discuss-gnuradio] Google Summer of Code 2016

> > Everyone, > > I'm really happy to say that GNU Radio was accepted as a participating > organization for Google Summer of Code 2016! After not participating > last year, I'm very glad I can give this news, and it'll be the fourth > time that we participate in this program. > > That's a very good

Re: [Discuss-gnuradio] OFDM Help

the > OFDM example. Maybe we could put it in a README file, and upload it to the > OFDM directory? Or insert these as comments at the respective lines of code? > > Kunal > > > On Thu, Jun 2, 2011 at 5:01 PM, Tom Rondeau wrote: > >> On Thu, Jun 2, 2011 at 12:00 PM,

Re: [Discuss-gnuradio] OFDM Help

nning average of the magnitude squared of the the input", but I am not getting its purpose at the end of the chain. Best Regards Usman On Thu, Jun 2, 2011 at 7:03 PM, Tom Rondeau wrote: > On Thu, Jun 2, 2011 at 3:10 AM, Usman Haider wrote: > >> Hi all, >> >> I am work

[Discuss-gnuradio] OFDM Help

Hi all, I am working on the OFDM in GnuRadio. After reading the code files and going through the presentation on the OFDM implementation I did understand most part of OFDM. But I still have few questions to ask: 1) how symbols_per_packet is calculated ? I know the following formula sy