针对目前太阳系行星探测器定位观测数据、定位模型参数以及联合处理问题造成的探测器定位精度差、不连续、可靠性差、稳健性弱等问题，本项目以行星探测器的地面观测数据和自主导航定位数据为研究对象，重点研究地面观测数据和自主导航定位数据之间以及自主导航定位数据之间的数据融合处理方法，构建行星探测器精密定位参数与动力学模型参数和参考系转换参数定权的可靠匹配关系，建立联合多源观测数据的行星探测器高精度定位模型，实现探测器定位参数、动力学模型参数和参考系转换参数三者间以及多源观测数据间的高精度配准与融合以及优势互补。本研究的开展将为行星探测器精密定位的高精度多源数据融合、动力学模型参数和参考系转换参数精化以及联合数学模型重建等提供关键技术支撑，服务于大地测量学与测量工程、深空天体测绘及探测器精密定位、导航与位置服务等领域。

In view of the interplanetary probe location accuracy problems such as discontinuity, poor reliability and weak robustness caused by observation data, model parameters and joint data processing problems, and based on the ground observation data and autonomous navigation and positioning data of the interplanetary probe, this project will focus on the joint data processing method between the ground observation data and autonomous navigation and positioning data, and between different autonomous navigation positioning data. A reliable weighting matching relation will be constructed between the precise positioning parameters of the interplanetary probe, the parameters of the perturbation model and the transformation parameters between different reference systems. With the joint of multi-source data, the high precise positioning model of interplanetary probe will be set up not only to implement the reliable weighting matching between the precise positioning parameters of the interplanetary probe, the parameters of the perturbation model and the transformation parameters between different reference systems, but also to implement high precision registration, fusion and the complementary advantages between multi-source data. For precise positioning of the interplanetary probe, the carrying out of this study will provide key technical support for precise fusion of multi-source data, improvement of the perturbation force model parameters and reference frame transformation parameters and the reconstruction of united mathematical model, which will serve in geodesy and geomatics, surveying and mapping deep space objects, and the probe precise positioning, navigation and location services, etc.