月球探测空间数据集成与检索技术研究

发布时间：2018-05-05 17:49

本文选题：分布式空间数据集成 + 数据编目　；参考：《国防科学技术大学》2011年硕士论文

【摘要】：21世纪以来,随着国际上又一次探月高潮的掀起,我国陆续发射了嫦娥一号与嫦娥二号探月卫星,获取并掌握了大量的月球探测空间数据。这些数据呈现出海量、多源、分布式存储等特点。因此,研究月球探测空间数据的集成管理方案,优化其检索方式,对我国探月工程的深入开展以及未来行星探测任务的规划具有重要的科研价值和现实意义。论文以月球探测空间数据集成与检索技术为主题,对以下内容进行了研究。首先,论文概述了空间数据集成的技术,提出了一个面向月球探测空间数据的集成管理框架,并根据这一框架设计了月球探测空间数据的编目模型与模式映射实现方法,详细描述了分布式环境下的月球探测空间数据集成如何实现。然后,论文分别从属性特征关联与视觉特征出发,描述了两种类型的检索。基于属性特征关联的检索介绍了属性关联的模型、检索算法以及具体实现;基于视觉特征的检索阐述了特征的提取、数据的划分以及索引的构建三个检索流程。最后,论文设计和实现了月球探测空间数据集成管理原型系统,展示了系统的功能,验证了本文关键技术用以解决月球探测空间数据集成与检索技术的可行性、可靠性和高效性。
[Abstract]:Since the 21st century, with the rise of another lunar exploration climax in the world, China has successively launched the Chang 'e-1 and Chang 'e-2 lunar exploration satellites and acquired and grasped a large amount of lunar exploration space data. These data show the characteristics of mass, multi-source, distributed storage and so on. Therefore, it is of great scientific value and practical significance to study the integrated management scheme of lunar exploration spatial data and optimize its retrieval method for the further development of lunar exploration project in China and the planning of future planetary exploration mission. In this paper, the space data integration and retrieval technology of lunar exploration is studied. Firstly, this paper summarizes the technology of spatial data integration, and proposes an integrated management framework for lunar exploration spatial data. According to this framework, the cataloguing model and pattern mapping method of lunar exploration spatial data are designed. How to realize the spatial data integration of lunar exploration in distributed environment is described in detail. Then, the paper describes two types of retrieval from attribute feature association and visual feature respectively. The retrieval based on attribute feature association introduces the model of attribute association, retrieval algorithm and its implementation; based on visual feature retrieval, it describes three retrieval processes: feature extraction, data partition and index construction. Finally, the thesis designs and implements a prototype system of lunar exploration spatial data integration management, which shows the functions of the system, and verifies the feasibility of the key technologies used in this paper to solve the lunar exploration spatial data integration and retrieval technology. Reliability and efficiency.
【学位授予单位】：国防科学技术大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：P184.5

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