中高空面阵CCD航空相机操作系统裁剪技术研究  

Research on Tailoring Technology of Operation System of Medium-high Altitude Area Array CCD Aerial Camera

作　　者：曹维国[1] 郑志峰 杨海凝 温培培[1] 段洁[1] 

机构地区：[1]长春理工大学光电工程学院,长春130022 [2]广东工商职业学院实训中心,肇庆526020

出　　处：《长春理工大学学报（自然科学版）》2015年第5期58-63,共6页Journal of Changchun University of Science and Technology(Natural Science Edition)

摘　　要：针对面阵CCD航空相机操作系统的实际需求,结合相机中PC104总线结构的硬件资源,对所采用的Linux系统进行实用性裁剪。采用粗粒度和细粒度相结合的裁剪方法,来增强Linux内核的抢占性,改善Linux内核的实时调度器的调度策略,以构建具有较强实施处理能力的嵌入式系统。在不同环境下,对系统的启动和任务响应性能的试验测试表明,裁剪后的系统稳定、可靠,且可达到启动时间小于5s,任务响应时间小于20ms的性能指标。In view of the actual demand of operating system of the air plane array CCD camera,and combining with the hardware resources of the PC104 bus structure,the Linux system adopted in CCD camera is cut practically,which based on the tailoring method adopting the combination of coarse-grained and fine-grained to enhance the Linux kernel preemption.Through improving the scheduling strategy of Linux kernel scheduler,we build a embedded system with the strong implementation capacity.The system startup and task of the response performance test in different environment shows that the cut systems is stable,reliable,and can achieve the startup time less than 5s,the performance of the task response time less than 20 ms.

关 键 词：航空相机 操作系统 裁剪 LINUX 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]