open-source ODE solve

2021-06-08 Thread Prof. M.B. Patil
Dear All, GSEIM is an ODE solver which uses GRC as the front end: https://github.com/gseim/gseim A description of this program is given in https://arxiv.org/abs/2104.06621 Contributions from those familiar with the GRC code will be greatly appreciated. Regards, M.Patil

Re: Issue with USRP signal reception when stream is produced by a Vector Source

2021-06-08 Thread Marcus Müller
Just from very quickly over your attached images: Your receiver is clipping, you can see that: the receive waveform should never even touch "1". You need to substantially reduce gain, potentially both in your receiver and transmitter. Best regards, Marcus On 08.06.21 16:32, Γιώργος Γιώργος wr

Enquiry on the use of GNUradio for DSA simulations

2021-06-08 Thread Emmanuel Ubom
Clear day Gentlemen and Laddies in this forum, Please I am absolutely new here; kindly bear with me if my question is stupid. I am carrying out research on a dynamic spectrum access scheme and wanted to see how I can use Gnu-radio to implement my algorithm. Please I have gone through the wiki and

Re: Enquiry on the use of GNUradio for DSA simulations

2021-06-08 Thread Marcus Müller
Hi Manny, welcome in the GNU Radio community! There's been a lot of active research don with GNU Radio on cognitive radio and dynamic spectrum access. You probably want to go to ieeexplore.ieee.org and look through the proceedings of all instances of the International Symposium on New Frontiers

Building 3.9.1 and finding SDL2 built with autotools

2021-06-08 Thread Barry Jackson
gnuradio & cmake seem not to be able to detect the presence of sdl2 development files. -- Configuring gr-video-sdl support... -- Dependency SDL_FOUND = FALSE -- Dependency Boost_FOUND = TRUE -- Dependency ENABLE_GNURADIO_RUNTIME = ON -- Disabling gr-video-sdl support. -- Override with

Re: Building 3.9.1 and finding SDL2 built with autotools

2021-06-08 Thread Marcus Müller
Hey Barry, great to have you around! The magic happens in gr-video-sdl/CMakeLists.txt, in "find_package(SDL)". That should cause cmake to look for a file FindSDL.cmake, which at least under Fedora 34 is under /usr/share/cmake/Modules/FindSDL.cmake and belongs to the cmake-data package. It seem

Re: Building 3.9.1 and finding SDL2 built with autotools

2021-06-08 Thread Ron Economos
It's not looking for sdl2, it's looking for sdl1.2. If you're using a version of CMake greater than 3.17, you can turn on find_package debugging by adding the following to the cmake invocation: -DCMAKE_FIND_DEBUG_MODE=1 This will give copious output about exactly what and where packages are