程序设计中实现对错误处理的技术

本文根据编程实践，介绍VB5．0中错误陷阱、Err对象以及相关的错误处理机制，并给出了用于错误处理的典型代码。     

基于联合双边滤波的融合图像跟踪算法研究

为了提高跟踪精度,提出一种基于联合双边滤波的融合图像自动跟踪算法.采用帧问差分法并通过形态学处理获得运动目标大致区域,在此基础上采集目标区域及相邻背景区域的代表颜色集合,由此生成草图作为联合双边滤波的引导图,进而生成完整的目标描述,通过边缘检测获得精确的跟踪结果.实验结果表明,方法能够获得清晰准确的跟踪结果,能够较好地避免跟踪中的漂移问题,且算法复杂度低,跟踪精度高.     

追踪及凝视状态下地气光对空间目标成像影响

为了分析不同探测方式下地气光辐射对空间目标成像特性的影响,利用卫星仿真工具包(satellite tool kit,STK)设计了一个以地球同步轨道(geosynchronous orbit,GEO)卫星与中轨道(medium orbit,MEO)卫星上搭载的可见光成像器为探测平台,以高椭圆轨道(highly elli...     

智能制造系统中的合作与协调

通过对智能制造系统结构和运行方式的介绍，分析了智能制造系统中合作与协调的特点，描述了基于改进合同网的谈判方式的制造任务分配方法，并提出分布式智能制造系统中各自治单元之间利用ＣＯＲＢＡ和分布式对象技术建立合作与协调基本环境的方法。     

增材制造法——MIM技术

论述了90年代国际全新的“增材制造”技术。重点介紹了该技术的分类和8种重要方法,并对有关方法进行了比较分析,最后对该技术的发展、应用和有关理论问题作了进一步阐述。     

虚拟座舱多功能显示器的设计与实现

在剖析座舱显示系统的发展及现状的基础上,本文详细介绍了虚拟座舱多功能显示器的设计原理及过程。整体系统的设计基于Open GL开发的仿真软件平台,系统的通信接口遵循W indows套接字规范,模块化架构兼顾了软件的移植性和继承性。通过任务计算机传输数据,虚拟多功能显示器可以实时显示飞机的飞行、导航、机载设备运行状态等参数,较好地模拟了战机实战状态下的各种数据显示。     

建立中国企业社会责任会计的构想

本文以西方社会责任会计为引导,阐明建立我国企业社会责任会计的必要性与可能性,并对我国企业社会责任会计的核算体系、考核指标体系和监控体系提出了基本框架。     

探测跟踪系统低空多路径模型的研究

根据对飞行器跟踪低空目标时所受的多路径干扰的分析，给出了基于多闪烁点源复杂目标和镜像目标的雷达散射截面积(RCS)模型以及地面散射系数模型。对整套模型方案进行的仿真实验表明，实验结果与实测数据吻合较好。对飞行器超低空飞行时抑制镜像干扰问题的解决有重要的参考价值。     

A multi-disciplinary plan for easier access, management, and analysis of science data

NASA's COST LESS Team is pursuing strategies to reduce the cost and complexity of planning and executing space missions. The team's technical goal is to reverse the trend of constructing unique solutions for similar problems. To this end, the team is exploring ways to represent mission functionality in terms of building blocks and is discovering approaches that could accommodate the same building blocks for seemingly disparate activities, such as organizing processed telemetry data, controlling onboard experiments, searching science archives, reducing and presenting information to science users, and supporting educational outreach. Reusable object technology (UOT), a research undertaking by the authors, is showing promise in recognizing similarities in functions which were previously viewed as unique because they appeared in different programs or mission phases. Since UOT is aimed at being implementation independent (i.e. the function performed could be accomplished manually, by an automated process, by a specialized instrument, etc.), no premature judgment for automation or autonomy need be made. In this paper, the authors attempt to strike a balance between theory and reality as they describe UOT, including its beginnings, its underpinning, its utility, and its potential for achieving substantive reductions in cost and complexity for the Agency's space programs. The authors discuss their collaboration with the Center for EUV Astrophysics, University of California, Berkeley to reduce the cost and complexity of science investigations. Their multi-disciplinary plan incorporates both UOT and a complementary technology introduced in this paper, called interactive archives.     

电子角跟踪导引头技术及其应用前景

对电子角跟踪在反辐射导引头中的应用进行了研究。介绍了导引头的组成、电子角跟踪的工作原理和特点。研究了如灵敏度、角跟踪误差、制导信号提取、弹体扰动去耦、角搜索模糊，以及单目标跟踪等关键技术，最后分析了电子角跟踪技术在雷达、单机无源定位、反辐射、救生和机器人等技术领域的应用前景。