基于语义的空间环境信息服务组合技术研究

随着卫星技术的飞速发展，保障空间技术系统的运行安全对空间环境预报业务提出了更高要求.本文根据空间环境信息服务中数据及模型资源分布式集成与共享的现状，针对空间环境预报数据智能化、自动化生成的需求，将Web服务技术及语义服务组合技术应用到空间环境信息服务中.根据空间环境领域特点，提出了空间环境领域的语义相似度计算方法，并采用基于语义相似度的方法实现空间环境信息服务的自动组合. 

Research on Space Environment Information Service Composition Technology Based on Semantics

With the rapid development of satellite technology and aerospace industry, ensuring the safety of the operation of space technology systems places higher requirements on the space environment forecast service. Based on the current situation of distributed integration and sharing of data and model resources in space environment information services, this paper applies Web service technology and semantic service combination technology to space environment information services to meet the needs of intelligent and automated generation of space environment forecast products. According to the characteristics of the space environment domain, a method for calculating the semantic similarity in the space environment domain is proposed, and a method based on semantic similarity is used to realize the automatic combination of space environment information services. The validity of service combination technology is verified by taking the generation of ionospheric TEC mapping data as an example, which can provide a reference for the research of remote sharing and automatic combination of resources in space environment.