基于FPGA的雷达信号模拟、采集与处理系统

介绍了基于FPGA设计并实现了一种雷达信号模拟、采集与处理的系统。系统主要由计算机和带有双路高速A/D和双路高速D/A的信号处理卡组成。信号处理卡以FPGA为核心控制与处理芯片,主要完成雷达信号模拟、雷达信号处理和雷达信号采集等功能,与计算机通讯使用USB2.0接口,采用数据抽取、坐标查表映射和DirectDraw等技术在计算机显示器上以P显和A显方式进行实时显示。该系统提供在线配置功能,用户可通过USB接口对FPGA程序进行配置或升级,无须专用配置芯片,简化了电路板设计,提高了系统的灵活性。

General radar signal simulation, acquisition and processing system based on FPGA

A general radar signal simulation,acquisition and processing system based on FPGA is designed and implemented.The system is composed of a microcomputer and a signal processing card with two A/D channels and two D/A channels.The signal processing card uses FPGA as kernel chip to control and process the radar signal,and uses USB2.0 interface to communicate with computer.The system uses data selection,coordinate inquiry-list mapping and DirectDraw technique to implement real-time PPI display and A-scope display on microcomputer monitor.The system has the capability of on-line configuration without special chip for configuration,which simplifies the design of circuit board and improves the flexibility of the system.