28通道收发处理模块设计

Design of 28-channel Transceiver Processing Module

介绍一种基于FPGA、多通道DA/AD的阵列信号收发处理硬件结构,是目前相控阵阵列信号生成、数字波束处理的常用技术手段。与现有中频相参多级变频调制/解调技术相比,该方案采用集成式芯片AD9371,通过内置混频器及DDS技术直接产生射频信号,可减小TR组件体积,提高系统集成度,对多通道TR组件通道的工程设计有一定参考价值。

This article introduces a hardware structure of array signal receiving and sending processing based on FPGA and multi-channel DA/AD,which is a common technical means for array signal generation and digital beam processing in phased array radar.Compared with the existing IF coherent multi-level frequency conversion modulation/demodulation technology,this solution uses the integrated chip AD9371 to direcily generate radio frequency signals through the builtin mixer and DDS technology,which can reduce the volume of TR components and improve system integration.It has certain reference value for the engineering design of multi-channel TR component channel.