加权平均用于星载GPS几何轨道的动力学平滑

On-Board GPS Orbit Determination Dynamic Smoothed by Weighted Average

利用星载GPS对低轨卫星进行精密定轨已逐步成为一种主要手段。在简要介绍几种定轨方法的基础上,从星载GPS数据预处理出发,提出了将加权平均用于星载GPS低轨卫星几何轨道的动力学平滑方法,并利用实测数据进行了验证。结果表明,该方法实现过程简单,且能有效提高定轨精度。

The on-board GPS technique is becoming a main method for Low Earth satellites orbit determination. Firstly several methods of orbit determination were introduced briefly. Then in term of on-board GPS data preprocessing, the method of on-board GPS orbit determination dynamic smoothed by weighted average was put forward. Finally the method was tested by observed data. The results showed that the dynamic smoothing method was not only simple in calculating but also could improve the precision of geometric orbits.