基于FPGA的雷达信号模拟、采集与处理系统

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

摘要:

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。

Abstract:

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.