摘要
选择不同的拟合方法与拟合模型对GPS高程拟合精度有很大影响。本文研究了多面函数拟合模型中平滑系数选择对GPS拟合高程精度的影响。通过实例计算分析表明,选择不同的平滑系数,GPS高程拟合精度相差较大,在利用多面函数拟合GPS高程实践中应慎重选择平滑系数。
The precision of GPS height fitting depends on the choice of models and methods. In this paper, choice of smoothing factor with multidimensional function model influencing on GPS height fitting precision was studied by illustration. Preliminary results show that GPS height fitting precision has large difference by selecting different smoothing factors. The smoothing factor should be carefully determined in application of GPS height fitting.
出处
《测绘与空间地理信息》
2010年第1期12-13,17,共3页
Geomatics & Spatial Information Technology
关键词
多面函数
平滑系数
高程异常
精度分析
multidimensional function
smoothing factor
height anomaly
precision analysis
