一种可级联的多通道实时阵列信号处理系统设计  

Design of cascaded multi⁃channel real⁃time array signal processing system

作　　者：冯武[1] 罗欣 孙卫杰[1] FENG Wu;LUO Xin;SUN Weijie(The 27th Research Institute of China Electronics Technology Group Corporation,Zhengzhou 450015,China)

机构地区：[1]中国电子科技集团公司第二十七研究所,河南郑州450015

出　　处：《现代电子技术》2024年第7期25-32,共8页Modern Electronics Technique

摘　　要：随着数字波束形成(DBF)体制雷达的集成度要求越来越高,分体式信号处理系统架构已经很难满足要求。为了解决此问题,文中提出一种可级联的多通道实时阵列信号处理系统。首先,在同一块阵列信号处理板上采用24路的模数转换器(ADC)、现场可编程逻辑门阵列(FPGA)、数字信号处理器(DSP)等芯片,实现多通道ADC采样、下变频、波束控制、数字波束形成、信号处理等功能;然后,通过高速GTH总线、系统同步、系统校准、多级流水等技术实现级联不同数量的阵列信号处理板,可应用于不同规模的DBF体制雷达。With the increasing requirement of integration of digital beam forming(DBF)radar,the architecture of split signal processing system is far from meeting the requirement.Therefore,a cascaded multi-channel real-time array signal processing system is proposed.First,on the same array signal processing board,24-channel analog-to-digital converter(ADC),field-programmable gate array(FPGA),digital signal processor(DSP)and other chips are used to realize the functions of multi-channel ADC sampling,down-conversion,beam control,digital beam forming and signal processing.And then,different number of array signal processing boards can be cascaded by high-speed GTH(Gigabit transceiver)bus,system synchronization,system calibration and multi-stage pipelining,which can be applied to DBF radars of different scales.

关 键 词：数字波束形成 多级流水 系统同步 系统校准 FPGA DSP 

分 类 号：TN911.7-34[电子电信—通信与信息系统]