基于特征的空间态势一体化数据模型

摘要

For multi-source heterogeneous ,distributed features of space situational data ,based on the analysis of the constituent elements of the space situation ,a conceptual model is established by feature-based modeling approach .The logical model is designed combined with the object-oriented approach ,and the physical model of space situational data is built based on XML ,then the construction of integrated space situational data model is completed ,and in the end the experiments are done to validate the practicality and effectiveness of the proposed integrated data model .The results show that :the proposed integrated space situational data model can organize and manage various types of space situational data ,and based on the integrated data model ,the interoperability and space situational information sharing between the various space situational information systems can be achieved .%针对空间态势数据多源异构、分布式的特点，在分析空间态势构成要素的基础上，采用基于特征的建模方法进行概念建模，并结合面向对象的方法进行逻辑模型设计，基于XM L构建空间态势数据物理模型，最终完成空间态势一体化数据模型的构建。通过实例验证表明，文中提出的空间态势一体化数据模型，可对各类空间态势数据进行统一组织管理，并可实现各空间态势信息系统之间的互操作和空间态势信息共享，具有实用性和有效性。