SDR Analog Front-End Architecture For Simultaneous Digitalization of Data Transmission and Navigation Signals

Abstract—In the last years, an increasing interest of the market in devices able to integrate navigation and communi-cation technologies has been noticed. Software Defined Radio technology helps in a tight integration of all possible radio signals into one, completely reconfigurable, universal device. In this work the problem of the parallel acquisition and demodulation of Galileo, Satellite UMTS (S-UMTS) and IEEE 802.11b local wireless LAN has been faced through the usage of a multi-stage super-heterodyne analog front-end able to overlap the different signals into a reduced bandwidth. In this way it is possible the usage of low-cost components both for the analog heterodyne front and for the A/D Converter. I