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

作　　者：朱建华[1] 龚真春[1] 吕志伟[2] 安治国[1] 

机构地区：[1]68011部队,甘肃兰州730020 [2]信息工程大学测绘学院,河南郑州450052

出　　处：《测绘科学技术学报》2009年第5期340-343,共4页Journal of Geomatics Science and Technology

摘　　要：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.

关 键 词：星载GPS 几何法定轨 动力法平滑 约化动力学 加权平均 

分 类 号：P228[天文地球—大地测量学与测量工程]