Design And Research Of Airborne Video Processing System

With the rapid development of artificial intelligence,information exchange and 5G network technology,Digital video technology is more and more applied in all kinds of weapon equipment.High-definition digital video has a large amount of raw data.Transmission requires higher bandwidth,The storage space of the aircraft's navigation recorder is limited,To solve this problem,This paper designs a video processing system based on the architecture of DSP and FPGA,which can compress and store video information to record video data of a certain aircraft during flight.This paper first analyzes the research background and significance of digital video technology,and proposes the research value of video processing system.Then the video coding standard and Da Vinci technology development history and research status are briefly introduced.The realization significance of the system selection DSP+FPGA architecture is expounded.Secondly,according to the requirements of the system task,the overall design scheme of the system is proposed.On this basis,the system is divided into modules according to the functions.The functional modules are designed specifically from the aspects of hardware circuit design and software design.The system selects DSP+FPGA as the hardware platform of the basic architecture,and uses the compression algorithm of H.264 coding standard to realize the compression and storage of video data.The overall follows generalization,modularization,serial design ideas,and uses advanced and mature technology to ensure better applicability and higher reliability.Finally,propose a system test plan and build a test environment,perform basic hardware testing on the video processing board,playback the video stream recorded in the storage board through the data playback software,compares and analyzes the amount of video stream data before and after encoding,calculates the video compression ratio,and analyzes the compression function of the video processing system.After testing and verification,the video processing system designed in this paper can achieve the expected goal.It has been successfully applied to airborne equipment.