国防科技大学学报Issue(2)：47-60,14.DOI:10.11887/j.cn.201402009
探空火箭图像采集与压缩系统的研究与实现
Study and implementation of sounding-rocket picture capture and compression system
摘要
Abstract
As is required by sounding rocket utilization,a real-time multi-channel picture capture and compression system applied in sounding rocket is studied and realized in the study,which introduces two key techniques applied in the system.The system bases its architecture on ARM and FPGA,and adopts a dedicated video-compression chip as the core processing unit.By way of improving the reliability of time division multiplexing of cameras and optimizing the control schemes of compression ratio,the system satisfies the requirement of low power consumption and high compression ratio in sounding rockets.It has compact circuit framework,high integration level and great flexibility.Practical tests show that, the system has some good features,such as being light-small,low-power,and low-cost.In the experiment named Space Environment Vertical Exploration,the system shot important scenes,including the separation of rocket head and engine,as well as the deployment of electric field detection boom.By adoption of contour volume evaluation methods,it is concluded that the pictures shot during the flight have sufficient definition for scientific research and engineer application.关键词
探空火箭/图像压缩/小波变换Key words
sounding rocket/picture compression/wavelet transform分类
信息技术与安全科学引用本文复制引用
陈萍,王林林,陈志敏,姜秀杰,熊蔚明..探空火箭图像采集与压缩系统的研究与实现[J].国防科技大学学报,2014,(2):47-60,14.基金项目
国家863计划资助项目 （）
