摘要： 为提高机载视频图像信号采集与传输的稳定性和可靠性，结合实际工程项目，设计一种基于现场可编程门阵列(FPGA)的多路视频图像采集与传输系统。利用FPGA控制整体时序，完成与各个外部设备的接口控制逻辑、输入输出缓存、相机的实时控制以及图像数据的降采样处理等功能。仿真结果表明，该系统各项指标均能满足工程项目的设计要求，具有可靠性高、数据不易丢失、抗干扰性强、便于数据传输和处理、实用性强等优点。

关键词: 机载, 图像采集, 图像传输, 可靠性, 时序, 相机控制

Abstract: In order to improve the reliability and stability of airborne imaging system, in this paper, a multiplex video image acquisition and transmission system based on Field Programmable Gate Array(FPGA) is designed combing the practical project to process the image data. FPGA is used to control the whole timing sequence and realize the interface control logic, data storing, control the working mode of camera and the image desampling filter. The system is successful applied in an aerial photoelectric imaging platform. Result through practical test and simulation indicates that all the indicators meet the actual project requirements and the system is versatile, practical and expanding.

Key words: airborne, image acquisition, image transmission, reliability, timing sequence, camera control

中图分类号: 

• TN91