摘要
在详细论述GPS高程转换基本原理的基础上,利用二次多项式模型,对区域高程异常进行了拟合分析,并进行了精度评定。结果显示,利用二次多项式模型进行GPS高程转换能够取得较好的结果,参与建模的点位拟合精度较高,而远离建模点分布区域的点位拟合精度相对较低,建模点的选取能够对GPS高程拟合结果产生重要影响。
On the basic principle of the GPS height transformation and using a quadratic polynomi- al moodel, fitting analysis and accuracy evaluation are mde on the regional height anomaly. The results show it get better results using quadratic polynomial model of GPS height trans- formation. The selection of modeling points has significant impact on the result of GPS ele- vation fitting. Participation modeling points have higher fitting precision, but the points a- way from distribution area of the modeling points have lower fitting precision.
出处
《福建地质》
2012年第1期84-89,共6页
Geology of Fujian
