Construction and Experiments of International Orbit Determination Network System for Micro and Nano Satellites

近十年来，微纳卫星在世界范围内的发展处于活跃状态，作为灾害监测和科学观测的实用平台正在成长。另一方面，高校地面站的定轨能力还不成熟。卫星通信跟踪的实现还不够充分，需要改进操作技术。本研究提出了低成本定轨所需的技术要素，并通过国际定轨网络系统实验对该系统进行了验证。半年多的连续无人操作实验取得成功，验证了系统的稳定性和可靠性。利用世界各国地面站的数据采集硬件和运行分析软件，实现卫星轨道分析和信息随时共享的系统。

In these ten years, the development of micro and nano satellites were activated in the world, and they are growing as practical platforms for disaster monitor or scientific observations. On the other hand, the ability of orbit determination in university ground stations is not matured. The satellite tracking for communication are not sufficiently achieved, and the improvement of operation technique are demanded. In this research, technical elements required for low-cost orbit determination were proposed, and the system was verified through the experiments of international orbit determination network system. The sequential unmanned operation experiment in more than half year was successful, and the stability and reliability of system was verified. By using the data acquisition hardware and the operation analysis software for ground stations in the world, the system of analyzing satellite orbits and sharing the information at any time will be realized.