欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
根据GPS广播星历算法的预报特性和自适应抗差滤波原理,提出了一种将GPS广播星历算法作为低轨卫星动力学模型的自适应抗差滤波综合定轨方法。计算结果表明,所提出的自适应抗差滤波综合定轨方法不仅充分利用了几何观测信息,而且通过自适应因子合理地控制了不可靠的广播星历预报信息对滤波解的贡献,有效地保证了定轨的精度和可靠性。
英文摘要：
Using Kalman filtering algorithm in GPS-based orbit determination for LEO,we have to deal with an observation mode and a dynamic model.GPS broadcast ephemeris algorithm will be regarded as the dynamic model of kinematic filtering.Firstly,the fitting algorithm for GPS broadcast ephemeris parameters is introduced.Then,the advantages and disadvantages of geometric orbit determination are analyzed.Finally,a new adaptively robust synthetic orbit determination algorithm is developed based on the predicting characteristic of GPS broadcast ephemeris algorithm and the adaptively robust filtering principle.The results show that the adaptively robust synthetic orbit determination algorithm can not only make good use of the geometric observation information but also reasonably adjust the contributions of the geometric observations and ephemeris predicted information to the filtering solution.
同期刊论文项目
同项目期刊论文
GNSS multi-carrier fast partial ambiguity resolution strategy tested with real BDS/GPS dual- and tri
A reference station-based GNSS computing mode to support unified precise point positioning and real-
Estimation and mitigation of the main error of centimeter-level Compass RTK solutions over medium-lo
Total least squares adjustment in partial errors-in-variables models: algorithm and statistical anal
High-rate precise point positioning (PPP) to measure seismic wave motions: an experimental compariso
Computed success rates of various carrier phase integer estimation solutions and their comparison wi
A new fusion scheme for accuracy enhancement and error modification in GPS/INS tight integrated navi
Preliminary assessment of the navigation and positioning performance of BeiDou regional navigation s
期刊信息
位置：