面向大时空尺度的空间信息网络高效组网关键技术研究

With the rapid development of significant applications such as space detection, emergency rescue and navigational positioning, high technological requirements are imposed on spatial information network in terms of timeliness, efficiency and reliability. Therefore, the establishment of large-scale space-time spatial information networks, which are characterized by flexible networking for full coverage, real-time and high-bandwidth access, and reliable and low-delay transmissions, has become one of the strategic focuses of space communication system development in our country. Relying on the National Spatial Information of Regional Data Application Center (Northeast Area Sub-Center) located at Northeastern University, this project focuses on the basic theories of large-scale spatial information networks and investigates key networking technologies. Three main scientific problems need to be solved: ① intelligent network planning and architecture design of spatial information networks for self-optimized networking; ② modeling theories of space-time graphs for spatial information networks based on topology control; ③ the integrated space-air-ground routing and transmission schemes in multidimensional space environment. The major research works include intelligent planning and architecture design, self-optimized networking, space-time graph modeling, joint routing and universal transmission protocols, network efficiency estimation, and demonstrable emulating and testing systems. The research project has huge innovation space and potential technological breakthroughs, which will provide a lot of theoretical references and technical reserves for the development of future large-scale space-time spatial information networks in our country.

随着我国空间探测、应急救援、导航定位等重大应用的快速发展，对空间信息网络实时性、高效性、可靠性等方面提出了更高的技术需求。因此，构建具有全覆盖灵活组网、高带宽实时接入及低时延可靠传输特征的大时空尺度空间信息网，已经成为我国空间通信系统建设的战略重点。本项目依托东北大学“国家空间信息区域数据应用中心（东北地区分中心）”，聚焦大时空尺度空间信息网络基础理论，研究其高效组网关键技术。拟解决三个关键科学问题：①面向自优化组网的空间信息网络智能规划及架构设计方法；②基于拓扑控制的空间信息网络时空图建模理论；③多维空间环境特点下的空天地一体化路由与传输机理。主要研究内容包括：大时空尺度空间信息网络的架构设计与智能规划、自优化组网机理、时空图模型、联合路由与通用传输协议及网络效能评估与可演示模拟测试系统。本研究具有很大的创新空间和潜在的技术突破，将为我国未来空间信息网的发展提供丰富的理论参考和技术储备。

随着我国空间探测、应急救援、导航定位等重大应用的快速发展，对空间信息网络实时性、高效性、可靠性等方面提出了更高的技术需求。因此，构建具有全覆盖灵活组网、高带宽实时接入及低时延可靠传输特征的大时空尺度空间信息网，已经成为我国空间通信系统建设的战略重点。本项目依托东北大学“国家空间信息区域数据应用中心（东北地区分中心）”，聚焦大时空尺度空间信息网络基础理论，研究其高效组网关键技术。主要研究内容包括：大时空尺度空间信息网络的架构设计与智能规划、自优化组网机理、时空图模型、联合路由与通用传输协议及网络效能评估。本研究具有很大的创新空间和潜在的技术突破，将为我国未来空间信息网的发展提供丰富的理论参考和技术储备。本项目已圆满完成了预定计划，成果如下：发表和录用SCI/EI论文41篇，其中SCI收录的国际期刊论文28篇；已参加国际学术交流和国际学术会议5人次；获得申请专利11项，其中获得授权4项；培养研究生15名，均已顺利毕业。