基于FPGA和计算机视频混合的雷达终端显示设计

Design of radar display based on FPGA and computer video mixing

介绍了基于FPGA和计算机视频混合的雷达雷终端显示设计。FPGA接收雷达回波信号,并将其由极坐标系转换为直角坐标系,同时,FPGA接收计算机显卡输出的DVI信号,并在行场同步信号的控制下,实现雷达回波和显卡输出数据的混合叠加,叠加后的数据经过DVI接口芯片转后,再次形成DVI标准数据,送光栅显示器显示。该设计实现雷达的回波和人机界面的同步混合显示,满足雷达系统的显示要求。工程上也验证了该设计的有效性。

This paper introduces the design of radar display based on FPGA and computer video mixing. FPGA receive P^adar echo signal In the polar coordinates system and converted it to cartesian coordinate system, at the same time,FPGA receives the DVI signal output from the computer graphics. Under the control of H and V, Padar echo signal and DVI signal are mixed,and the mixed signal is converted the standard DVI signal again by using DVI interface chip, the standard DVI signal is sent to the raster scan display. The design achieve synchronous display of the radar echo and human--computer interface, and meet the requirement of the radar display system. The result of electronic engineering shows that the design is efficient.