Architecture of Software Defined Radio Using Digital Signal Processor
In considering the architecture of the radio device, whether mobile terminal or base station it simply divided into two areas. RADIO FRONT END,RADIO BACK END. Radio front end is related to the radio frequency aspects both receiver and transmitter section, and hardware is the dominant element for the front end. Where as Radio backend is related to the signal processing functionalities, and hardware coupled with software as the dominant element of the back end. Software radio design begins at the antenna. Wideband antennas are needed to access multiple RF bands dynamically, sequentially or in parallel. Performance of the antenna and RF to digital conversion plays a key part in determining the capabilities of an SDR platform.