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Re: Regarding osmocom source missing in gnuradio


From: Kyeong Su Shin
Subject: Re: Regarding osmocom source missing in gnuradio
Date: Mon, 12 Sep 2022 07:17:38 +0000

Hello Sumit:

GNU Radio has a feature called "out-of-tree modules". It basically lets you to add 3rd-party signal processing blocks to your GNU Radio installations.

Osmocom source is a out-of-tree module from osmocom, called gr-osmosdr. You can replace that with a UHD source, if (and only if) your radio is a USRP from Ettus Research.

There are also some out-of-tree modules for energy detection and cyclostationay analysis (like gr-specest). I think the PSK modulation block has been removed from GNU Radio, as it was somewhat buggy and you are better off impelemting it manually as suggested in GNU Radio Wiki ( https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation ), but I could be wrong about that.

If you installed GNU Radio via a package manager (like apt in Debian/Ubuntu), then maybe you can also install some out-of-tree modules via that package manager (like apt install gr-osmosdr). If you manually installed GNU Radio or the modules are not available for your package manager, then you may have to manually build and install the modules (usually involves git clone -> cmake -> make -> make install -> ldconfig).

Regards,
Kyeong Su Shin

보낸 사람: Sumit Agrawal (P19EE207) <agrawal.15@iitj.ac.in> 대신 Discuss-gnuradio <discuss-gnuradio-bounces+ksshin=postech.ac.kr@gnu.org>
보낸 날짜: 2022년 9월 12일 월요일 오후 3:58
받는 사람: discuss-gnuradio@gnu.org <discuss-gnuradio@gnu.org>
제목: Regarding osmocom source missing in gnuradio
 
Hi,
I am using gnu radio v3.8 and UHD v4.2. I can see that there is no specific block for the osmocom source. Is the osmocom source behave as a UHD source? 

I can also see that there is no specific block for energy detection, cyclostationary detection, and PSK modulation. But, I have seen these blocks in many videos on youtube. So, I need help regarding how to make these blocks.

--
Thanks & Regards,
Sumit Kumar Agrawal
Ph.D. (Electrical Engineering)
Indian Institute of Technology
Jodhpur, Rajasthan-342037
Mob. No.- 8410957412

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