数值积分和数据融合在单位矢量法中的应用  

Application of Numerical Integration and Data Fusion in Unit Vector Method

作　　者：掌静[1] 

机构地区：[1]中国科学院紫金山天文台,南京210008

出　　处：《天文学报》2012年第1期94-95,共2页Acta Astronomica Sinica

摘　　要：单位矢量法是紫金山天文台提出并得到广泛应用的一种系列轨道确定算法．该算法通过投影变换，对不同类型的观测数据构成不同的条件方程，从而便于不同类型数据的加权处理，充分发挥了高精度数据在定轨中的作用，显著提高了定轨精度．The Unit Vector Method （UVM） is a series of orbit determination methods which are designed by Purple Mountain Observatory （PMO） and have been applied extensively. It gets the conditional equations for different kinds of data by projecting the basic equation to different unit vectors, and it suits for weighted process for different kinds of data. The high-precision data can play a major role in orbit determination, and accuracy of orbit determination is improved obviously.

关 键 词：单位矢量法 数据融合 数值积分 应用 紫金山天文台 定轨精度 投影变换 轨道确定 

分 类 号：P112.2[天文地球—天文学]