L'outil du jour : GNURadio

L'outil du jour : GNURadio

GNU Radio est une suite logicielle dédiée à l’implémentation de radios logicielles et de systèmes de traitement du signal. Équipé de ce logiciel libre, un groupe de scientifiques a rétabli le contact avec un satellite des années 1970 pour le piloter et le replacer sur orbite terrestre2. [Wikipedia]

Le logiciel GNU Radio fournit une plateforme et les outils pour construire et exécuter des SDR ou des applications génériques de traitement du signal. Les applications GNU Radio sont appelées «flowgraphs», qui sont une série de blocs de traitement des signaux reliés entre eux, décrivant ainsi un flux de données. Comme avec tous les systèmes de radiocommunication définis par logiciel (SDR) la reconfigurabilité est un élément clé. Au lieu d'utiliser différentes radios destinées à des fins spécifiques mais disparates, une seul radio générique peut être utilisée comme front-end, et le logiciel de traitement de signal (ici, GNU Radio), gère le traitement spécifique de l'application radio.

Ces flowgraphs peuvent être écrites en C ++ ou le langage de programmation Python. L'infrastructure GNU Radio est entièrement écrit en C ++, et bon nombre des outils utilisateur sont écrits en Python.

GNU Radio est un paquet et une partie du projet GNU traitement de signal. Il est distribué sous les termes de la GNU General Public License (GPL), et la plupart du code du projet est protégé par la Free Software Foundation.

Il existe aussi une image DVD pour machine virtuelle téléchargeable à cette addresse : http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioLiveDVD, pour les utilisateurs ne souhaitant pas utiliser linux ou faire de changement à leur environnement.

Visitez aussi le site officiel de GNURadio : http://gnuradio.org/

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