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。
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.
出处
《极地研究》
CAS
CSCD
1997年第3期227-231,共5页
Chinese Journal of Polar Research
基金
国家测绘局
国家海洋局极地考察办公室基金
关键词
西南极
坐标变换
GPS
形变网
误差
监测数据
Antarctica,systematic error,statistical test,scale factor,coordinate conversion
