【摘要】 多源数据融合定轨通过综合利用光电与无线电探测数据实现空间目标轨道确定，从而降低单一数据来源的不确定性，提升探测数据的可靠性。半解析法是多源数据融合定轨的主要方法，其兼顾数值法与解析法的优点，可实现快速、精确的轨道积分，适用于大规模、长期的轨道预报。然而，现有方法在不同轨道类型及对应摄动力模型的适应性上仍存在较大差异。针对多源信息融合定轨问题，文中提出一种基于半解析方式的轨道计算方法。该方法依据空间目标轨道根数的变化规律，采用平根数半解析一阶理论计算摄动。在此基础上，设计并实现了多源信息融合定轨系统，可实现参数设置、多源数据融合定轨、轨道关联及定轨结果分析等功能。通过选取四个目标的实际探测数据进行了实验验证，结果表明文中所提方法满足定轨精度要求。更多还原

【Abstract】 For multi-source data fusion orbit determination, photoelectric detection and radio detection data are simultaneously used to determine the orbit of space targets, thereby reducing the uncertainty of a single detection data source and improving the credibility of detection data. The semi-analytical methods are the main approach for multi-source data fusion orbit determination. Their advantages of balancing both numerical and analytical methods allow them to achieve rapid and accurate orbit integration, making it suitable for large-scale, long-term orbit prediction. However, existing methods still exhibit significant differences in adaptability to different orbit types and corresponding perturbation models. To address the issue of orbit determination based on multi-source information fusion, a orbit calculation mehtod based on a semi-analytical scheme is proposed in the paper. In the method, the perturbation is calculated using the semi-analytical first-order theory of the mean elements according to the variation law of the orbital elements of space targets. On this basis, a multi-source data fusion orbit determination system, capable of parameter setting, multi-source data fusion orbit determination, orbit correlation and orbit determination result analysis, is designed and implemented. Experiments are carried out using the actual detection data from four targets, and the experimental results show that the method proposed in this paper meets the requirements of orbit determination accuracy.更多还原