Design of Zero-Intermediate Frequency Digital Receiver Based on FPGA
Ong S · 2007
In this paper,a design scheme of zero-intermediate frequency digital receiver is introduced,which is based in in_quadrature multiphase filtering. This receiver adopts the system and composition of the software radio. It means that the receiver builds a current hardware platform,and by using software to achieve communication function to receive amplitude modulation(AM) signals. When signals get to the antenna,RF deals with them and then broadband A/D switches them to digital data. After that,FPGA(Field Programmable Gate Array) modules realize all the necessary signals processing. Then,the disposed data are converted by D/A and send to the user terminals.