Exploitation de la clé RTL-SDR pour l’analyse des signaux AM, FM et ASK

Abstract

Software defined radio RTL-SDR (Software Defined Radio) is a solution for the lack of flexibility of Radio parameter change, so a large part of the hardware is implemented in software, it uses programmable digital circuits to perform the signal processing . This device allows the listening and the spectro-temporal analysis of the radiofrequency signals. In our graduation project we have exploited a RTL-SDR key to make a frequency scan of some radio-frequency signals using GNU Radio development software thanks to its ease of error correction and configuration of these constituent elements. The results obtained ensure the efficiency and the good reception quality of RTL-SDR signals. ملخ