摘要
提出了一种基于FPGA的机载视频切换显示和检测方案。以可编程逻辑器件(FPGA)为核心处理器,阐述了整个系统设计原理,并详细介绍了系统内部的硬软件设计。最后,搭建硬件测试平台进行测试和验证。设计实现了5路PAL-D制视频输入、6路PAL-D制视频输出的实时切换显示功能,同时,对输入输出视频有效性进行了检测。极大地简化了系统硬件架构和逻辑算法,且视频输出延迟较低,从而降低了系统功耗,提高了系统的可靠性。
An airborne video switching display and detection scheme based on field programmable gate array(FPGA)is proposed.Taking FPGA as the core processor,the design principle of the system is expounded,and the hardware and software design inside the system is detailed.Finally,the hardware test platform is built for testing and verification.The real-time switching display of 4-channel PAL-D video input and 6-channel PAL-D video output is implemented,at the same time,the effectiveness of input and output video is detected.The hardware architecture and logic algorithm of the system are greatly simplified,and the video output delay is low,reducing the power consumption of the system and improving the reliability of the system.At present,it has been successfully used in the display control management system of a key type of aircraft,which has important practical application value.
作者
李大超
蔡潇
王上
朱鹏程
LI Da-chao;CAI Xiao;WANG Shang;ZHU Peng-cheng(The tenth Military Representative Bureau Resident in Shanghai Region for The Naval Force,Shanghai 200233,China;China National Aeronautical Radio Electronics Research Institute,Shanghai 200241,China)
出处
《航空电子技术》
2020年第3期23-27,共5页
Avionics Technology
