一种基于FPGA的直接数字射频上变频方案

A method for digital direct RF up-converter with FPGA

传统模拟器件实现射频(RF)上变频方法存在硬件复杂度高,灵活性差,功耗大等缺点。随着半导体器件的发展,软件无线电要求将上变频中射频或中频的信号处理尽量往基带数字信号处理靠拢。本文利用多相滤波器原理,提出一种基于现场可编程门阵列(FPGA)的直接数字RF上变频架构和实施方案,并且通过软硬件仿真验证了该方案的可行性。

Common method for up-converter implementation with analog device is of high complexity, poor inflexibility and large power consumption. With the development of semiconductor devices, software radio requires the Radio Frequency(RF) or Intermediate Frequency(IF) signals processing next to base band as close as possible. Therefore, a method for digital direct RF up-converter with poly-phase filters based on Field Programmable Gate Array(FPGA) is proposed. Its feasibility is verified through software and hardware simulations.