基于ODTK的卫星精密轨道确定

为快速有效地执行卫星的精密轨道确定任务，引入AGI公司的ODTK（orbit determination tool kit）软件，给出了ODTK软件执行精密轨道确定任务的算法原理和操作步骤，并基于仿真实例分析了轨道确定结果的残差分布和定轨精度。结果表明，ODTK软件能够提供稳定的滤波性能、精密的轨道确定结果和丰富的数据分析图表，可以作为开展卫星精密轨道确定研究的分析工具和验证卫星精密轨道确定算法有效性的参考标准。

Determination of satellite precise orbit using ODTK

In order to implement the determination task of satellite precise orbit effectively, this paper brings in the ODTK （Orbit Determination Tool Kit） from AGI company, gives the algorithm principles and operating steps for implementing the task of precise orbit determination by using the ODTK, and analyzes the residual distribution of orbit determination results and its precision. Results show that using the ODTK can provide the stable filtering performance and precise orbit determination results as well as abundant data analysis charts and tables, thus serving as an analyzing tool for study on precise orbit determination of satellites and reference standards for verification of the effectiveness of precise orbit determination algorithms.