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DEF CON 23 - Wireless Village - Balint Seeber - SIGINT and Blind Signal Analysis w GNU Radio and SDR |
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DEF CON 23 - Wireless Village - Balint Seeber - SIGINT and Blind Signal Analysis w GNU Radio and SDR Par SecurityTube.NetLe [2015-12-08] à 08:12:27
Présentation : The workshop will cover many common techniques used to reverse engineer the physical layer of a wireless communications system - Blind signal analysis on a signals re-broadcast from a satellite transponder modulation type, order, symbol rate, error correction,scrambling, differential coding, visualization - Applying auto-correlation to interesting signals on the HF band RADAR, OFDM, symbol timing - Frequency hopping wide-band, real-time spectrum visualization All with GNU Radio Participants are advised to bring their own SDR to receive signals with, and have the very latest version of GNU Radio installed, and if they can manage also the gr-baz out-of-tree module. Signal fundamentals Properties that can be exploited for blind signal analysis Modulation schemes Periodicity in symbols Repetition in frames Bursty vs. continuous signals Techniques Auto-correlation Cyclostationary analysis Decoding Demodulation Common additions scrambling, error correction De-framing Checksums Enhancements briefly Direction Finding Physical layer fingerprinting Advanced SDR with USRPs Burst mode Arbitrary sample rates Digital tuning Frequency hopping For More Information Please Visit - https www.defcon.org html defcon-23 dc-23-index.html
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