雷达信号高速数据采集系统设计

Design of high-speed data acquisition system for radar signal

为了满足试验中对雷达中频信号的采集和记录要求,设计了一个最高采样速率为400MHz、存储容量为4．8TB的数据采集系统。它具有数字存储式示波器和高速流盘两种工作模式,可同时对2路雷达信号和3路同步脉冲信号进行采集。该系统基于PCI总线,采用先进的FPGA作为控制核心,结构紧凑、功能强大。

In order to acquire and record intermediate frequency signal in radar experimentation, a data acquisition system with 400MHz sampling frequency and 4. 8TB mass storage was designed. It has two work-modes: DSO and high-speed saving disk, and can sample two radar signals and three synchronous pulse signals synchronously. Based on PCI bus and using advanced FPGA as control core, this system has a compact structure and strong functions.