With the evolution of the technologies, especially those related to mobile communication, a new generation of products and services had been launched. The increasing need of integration of these products and services, promoted by the military application development, has generated a new technology called Software Defined Radio (SDR), capable to reach high levels of integration on hardware, concatenated with the flexibility of software. This paper introduces the implementation of GNU RADIO, a platform of free development capable to offer SDR services. The challenges and perspectives of de SDR systems will also be presented.
LEANDRO G. B. FERREIRA