空间天文卫星有效载荷数据建模研究

A series of astronomical exploration missions are expected to launch in the coming decade. Their various ambitious scientific objectives, once achieved, will greatly promote the studies in related disciplines in the astronomical field in China. Scientific ground segments are indispensable to successfully fulfill those objectives. Conventionally, scientific ground segment will be implemented separately from mission to mission, leading to risky systems with high economical and time cost. Developing reusable and configurable components has been proven an effective solution. Appropriate application-oriented information model describing the payload data is one of the essential question to be solved in developing such systems. With the abstract models, functional components can be designed on application level with lower level information handled by unique interfaces provided by data modelling tools. Presented in this proposal, the study of such data models and supporting tools for space astronomical instruments aims at answering common key questions as defining, describing, managing and applying the payload data model in scientific ground segment development, which includes the payload data model definition, mission information database design and the interfaces provided by data modelling tools. The purpose is to provide theoretical information model definition and best practice report on its application, provide modelling tool architecture design, implement its prototype and demonstrate and validate the whole study results by applying it to support the development of scientific ground application system of several space astronomical missions. The proposed study meets the realistic requirements in supporting for ground segment development of current and future astronomical missions.

当前多个空间天文探测项目或已批准立项或正在开展前期论证工作。地面应用系统是实现其科学目标不可或缺的保障。可复用、可扩展、平台化已经成为科学应用系统的发展趋势。本课题关于空间天文卫星有效载荷数据建模及支持工具的研究为科学应用系统平台化、可扩展化提供数据抽象模型和应用工具。课题研究目标为天文卫星有效载荷模型，完成提供数据描述编辑定义与验证、描述文件生成、数据信息获取、模拟数据等公共服务功能的建模工具的设计与原型系统实现，通过与多颗在建天文卫星的科学应用系统对接，演示、验证其功能和应用。课题拟解决数据模型定义、应用工具实现方案、应用工具与科学应用系统接口定义等关键问题，将兼顾研究成果的理论与实用价值。所得成果为当前及未来的空间天文项目地面应用系统实现提供有益参考和技术积累。

当前多个空间天文探测项目或已批准立项或正在开展前期论证工作。地面应用系统是.实现其科学目标不可或缺的保障。可复用、可扩展、平台化已经成为科学应用系统的发展.趋势。本课题关于空间天文卫星有效载荷数据建模及支持工具的研究为科学应用系统平台.化、可扩展化提供数据抽象模型和应用工具。课题研究目标为天文卫星有效载荷模型，完.成提供数据描述编辑定义与验证、描述文件生成、数据信息获取、模拟数据等公共服务功.能的建模工具的设计与原型系统实现，通过与多颗在建天文卫星的科学应用系统对接，演.示、验证其功能和应用。课题拟解决数据模型定义、应用工具实现方案、应用工具与科学.应用系统接口定义等关键问题，将兼顾研究成果的理论与实用价值。所得成果为当前及未.来的空间天文项目地面应用系统实现提供有益参考和技术积累。