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Questions tagged [gnuradio]

GNU Radio is a free software development toolkit that provides the signal processing runtime and processing blocks to implement software radios.

GNU Radio is a free software development toolkit that provides the signal processing runtime and processing blocks to implement software radios using readily-available, low-cost external RF hardware and commodity processors. It is widely used in hobbyist, academic and commercial environments to support wireless communications research as well as to implement real-world radio systems.

Official GNU Radio Logo

GNU Radio applications are primarily written using the Python programming language, while the supplied, performance-critical signal processing path is implemented in C++ using processor floating point extensions where available. Thus, the developer is able to implement real-time, high-throughput radio systems in a simple-to-use, rapid-application-development environment.

While not primarily a simulation tool, GNU Radio does support development of signal processing algorithms using pre-recorded or generated data, avoiding the need for actual RF hardware.

GNU Radio is licensed under the GNU General Public License (GPL) version 3. All of the code is copyright of the Free Software Foundation.

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Implementation of TDMA scheme on GNU radio using USRP

What is the procedure of implementing TDMA scheme on GNU radio using USRP? I want to implement TDMA scheme using two USRPs as a transmitter and the third one as a receiver. The requirement is that first transmitter sends some data to the receiver…
Aqdas Asif
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Programming an OOT Module with variable I/O Type

I want to write a OOT-Module for GNU Radio in c++. In order to familiarize myself with the matter, I want to write the existing Block 'add_xx' myself. I do not know how I can do it that a drop-down menu appears in the block settings for the IO-Type…
Mystery
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GNU Radio simulation stuck

I have attached a screenshot of my design here: when I start simulating it stuck and only plot a few vectors of data. I think it's becasue of variable time shift block, it's a hierarchy block, when I connect a constant source to i'ts float input…
Moe
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Retrieve data from USRP N210 device

The N210 is connected to the RF frontend, which gets configured using the GNU Radio Companion. I can see the signal with the FFT plot; I need the received signal (usrp2 output) as digital numbers.The usrp_sense_spectrum.py output the power and…
Abs
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when i was creating out of tree module for gnu radio , after the command " make test" i got the following error

I was trying to create an out-of-tree module square_ff for GNU Radio following the steps as given in OutOfTreeModules. After the command make test I got an error. I typed ctest -V and got the following result. I am new in…
user2667675
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SDR kit with 2.4GHz RF frontend?

Do you know a SDR (Software Defined Radio) kit with a 2.4GHz ISM band (2400MHz - 2483.5MHz) transceiver? I need to perform some software defined radio including customised modulation. Also the price for one kit should be at maximum $1000. I know…
Bjarke Freund-Hansen
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gnuradio 3.10 from package on Ubuntu 22.04 and uhd support

My question is for general understanding of gnuradio 3.10 and uhd support. I have fresh instalation of Ubuntu 22.04. After: sudo apt install gnuradio it installs gnuradio 3.10, but there is no install of full scale uhd-host. For example there is not…
Ivan Penchev Ivanov
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How to calculate reflection with GNUradio?

I am preforming an experiment that involves a transmitter, material target, and two receivers (as a baseline). The goal is to record the RF reflectivity of the target. How can I calculate/measure this from the received signal, and can it be done in…
theencomputers
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Is there a way to modulate signal looks like some mammal voice?

I want to send an audio message which actually looks like some mammal voice but inside it has some coded information, something like Hello !. I know basically modulation is super-imposing your original signal over carrier. Is there an example of…
Jay Patel
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Python 3.6 cannot import gnuradio (3.7.9)

I know Gnuradio 3.7.9 supports python2.7 and gnuradio 3.8 is the one supporting python3, however i find myself in a peculiar situation. I currently have to use gnuradio 3.7.9 since at work we are still developing with it, however the program i'm…
Massimo Isonni
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Error RIME Address

I am working on feedback loop to test RIME using Gnuradio companion. when I give nc localhost 52001 in one terminal and nc localhost 52002 in another and type message, then I see the error like this Warning: invalid target RIME-Address…
Rensi Sam
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How do you measure RSSIs of different parts of the spectrum(like FM, DVB-T and so on) using LabView?

I am doing a project on indoor localisation using fingerprinting. Is it possible to build a system in LabView which can scan the entire spectrum and provide me the RSSI measurements of different types of signals?(say FM, GSM, DVB-T and so on.) In…
heisenberg
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Gnuradio,OOT: correcting send() for tagged stream block?

I need help making a gnuradio OOT module. I am actually trying to extending one code. I am trying to make 2 TX 1Rx tagged stream block (OOT). For 1Tx 1Rx, it is working fine. I am trying to extend it. Now the problem is, I am not being able to…
Sanjoy Basak
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how do I write my output to a file using file sink to analyze the output data?

I'm reading binary data from a(two) file(s)(.txt), after performing a logical operation(XOR),writing output to another file(.txt)(using file sink). After I execute the flow graph, and open the file, it shows something like corrupted word…
user3426570
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USRP to generate a beacon

I would like to use my USRP E110 to generate a wave signal at aspecific frequency . I want to use the USRP as a beacon to generate this signal . I think there is a way I can do it directly on the hard drive rather than GNU radio. Could any one help…
user573014
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