基于DSP和FPGA的GIF数据采集卡的设计与实现

鉴于红外成像GIF技术在现代化精确制导武器中的重要作用,提出了一种基于DSP＋FPGA实现GIF数据采集卡的设计方案。采集卡以DSP自带的PCI接口实现了PCI总线,通过DSP的EMIFB外部存储器接口和FPGA进行数据交互。利用FPGA构建了专用的收发逻辑控制单元、数据处理单元和FIFO,完成了对目标红外图像和角度、距离数据的捕获。经过实际测试,采用本方案设计的GIF数据采集卡能够实时采集、存储导引头捕获的目标数据,工作稳定可靠,满足工程应用的需求。

Design and implementation of GIF data acquisition board base on DSP and FPGA

In view of the importance of IR image GIF technique in modern precision guided weapons, this paper proposed the implementation method of GIF data acquisition board base on DSP and FPGA. The board accomplished PCI bus via inbuilt PCI interface of DSP, and implemented data exchange between DSP and FPGA through EMIFB. Taking advantage of FPGA, it build the special transceiver logic control unit, data processing unit and FIFO, completing the task of capturing RF image, angle and distance data of the target. Through real test, the GIF board designed in this proposal can perform the function of real time acquisition and store of target data captured by the seeker. Its reliable stability character meets the requirements of project application.