Station d’écoute perso SDR

Voici une synthèse de ce que j’ai trouvé sur le web concernant la SDR

(Sofware Defined Radio)

Le but est essentiellement d’essayer de comprendre son principe de fonctionnement.

J’ai pris pour exemple le Récepteur SDR 40m.

Joe Mitola says, "A software radio is a radio whose channel modulation waveforms are defined in software. That is, waveforms are generated as sampled digital signals, converted from digital to analog via a wideband DAC and then possibly upconverted from IF to RF. The receiver, similarly, employs a wideband Analog to Digital Converter (ADC) that captures all of the channels of the software radio node. The receiver then extracts, downconverts and demodulates the channel waveform using software on a general purpose processor." [1]