Implementation of Digital Demodutation Radio Receiver Using Multi-speed Processing Technique

Software radio receiver is based on a versatile programmable platform,which can realize different molds.High-speed data acquisitions and multi-speed processing are discussed which are the key techniques of the software radio.Then,on the basis of these,IF digitalization project based on multi-speed processing model was adopted according the present chip level,which completes the demodulation of IF digital signals by specific programmable chip and common DSP.Finally,taking the AM signal as an example,the feasibility and implementation of the proposal were verified.