极地研究

极地研究 ›› 1997, Vol. 9 ›› Issue (3): 67-71.

• 目次 • 上一篇    下一篇

西南极菲尔德斯GPS形变网监测数据的误差特性分析与处理

陈春明   

  • 出版日期:1997-09-30 发布日期:1997-09-30

DATA ERROR ANALYSIS AND PROCESSING OF GPS CRUSTAL DEFORMATION MONITORING NETWORK IN WEST ANTARCTIC FILDES REGION

  • Online:1997-09-30 Published:1997-09-30

PDF (PC)

1165

摘要：

本文对西南极菲尔德斯形变网ＧＰＳ监测数据的误差特性进行分析，利用数理统计原理检验了数据中的系统误差，提出了削弱这类系统误差的方法。该方法有３个特点：１．以监测网中两个稳定点为基准；２．对监测网数据进行尺度因子改正与坐标变换迭代计算；３．归算后监测网点位结构不变。经改化处理后的数据，基本上消除了系统误差的影响。

关键词: 西南极,系统误差,统计检验,尺度因子,坐标变换

Abstract:

In this paper the data error property is discussed for GPS crustal deformation monitoring Network of West Antarctic Fildes region,and the systematic error of the data is tested by statistical theory. One method to remove the effect of systematic error from GPS data is given out in this paper also. The method has following 3 features:1.two stable points in the Network are selected as computative datum;2.the scale factor correction and iterative calculation of coordinate conversion are applied to the monitoring data;3.the structure of the Network points does not change after rectified calculation. The systematic error influence is eliminated in rectified data fundamentally.