Type | devroom |
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2/6/22 |
<p>This presentation will give you an overview what to expect in the Free Software Radio devroom at FOSDEM 2022.</p>
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2/6/22 |
<p>The <a href="https://github.com/open-sdr/openwifi">openwifi</a> project (opensource WiFi chip) was firstly introduced in the fsr dev room of FOSDEM2020, Brussels. So it would be our honor to give the annual update of the project in the same event!</p> <p>This year we will bring these contents:</p> <ul> <li>Features added in 2021</li> <li>Bug fixes in 2021</li> <li>Some initial test results by the R&S CMW270 WiFi tester</li> <li>The community growth we saw in 2021: the new cheaper ...
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2/6/22 |
<p>Processing tools such as RFNoC by Ettus Research allow for FPGA processing & acceleration however, this can only be used achieved by using USRP devices. gr-litex is an open-source tool that uses GNU Radio with LiteX and allows for different boards by a variety of vendors to achieve processing and acceleration. The project currently uses an Acorn CLE-215+, a cryptocurrency mining accelerator card repurposed as an FPGA for the project.</p>
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2/6/22 |
<p>Hellschreiber is a morse-like graphical transmission of digital data reminiscent of fax over wireless communication media designed in the 1930s and used during the second world war by the German military. Now used by the ham radio community, we consider how hellschreiber is emitted using a Raspberry Pi GPIO pin configured as radiofrequency emitter, an approach made popular by rpitx and generalized to GNU Radio with our gr-rpitx OOT sink block (https://github.com/jmfriedt/gr-rpitx). The ...
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2/6/22 |
<p>All radar is dominated by high-bandwidth, fixed waveforms. All radar? No! A little domain combines communications and sensing, introducing OFDM Radar:</p> <p>gr-ofdmradar is a GNU Radio out of tree (OOT) module, providing an OFDM Radar implementation that can be used in simulations and, potentially, hardware. In this talk I will introduce the motivations and theory behind OFDM Radar as described by Martin Braun, present gr-ofdmradar and how it can be used in simulations and conclude with a ...
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2/6/22 |
<p>Voyager 1 is the furthest spacecraft and the first ever to exit the solar system. Fueled by its radioisotope generators, after more than 40 years of flight it is still sending us data about the interstellar medium using its 3.7 metre dish antenna and 8.4 GHz transmitter. In this talk we report two adventures regarding the reception of the Voyager 1 signal.</p> <p>In the first part, we show the successful detection of the Voyager 1 signal using one of the 6.1 metre dishes at the Allen ...
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2/6/22 |
<p>A six minute talk on the M17 Project, an open source digital communications protocol suitable for VHF/UHF and more. Intended for amateur radio terrestrial and space application, many exciting things are possible with this 4-ary FSK layered protocol from a dynamic and motivated international team. This talk will introduce the audience to the project and the purpose, goals, products, opportunities, and enjoyment possible with M17. M17 is not encumbered by US patents.</p>
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