摘要
高程异常一般呈多曲面分布,在局部区域内,建立多面函数模型进行GPS高程拟合,可以达到较高的精度。利用多面函数模型进行GPS高程拟合,除选取分布均匀的中心点外,核函数形式的选取直接关系到GPS高程拟合的精度。对几种多面函数模型进行研究和比较,并在某桥梁建设中进行了实际应用。
As a rule, height anomaly is polyhedral. In local area, we can arrive at preferable precision by GPS height fitting using polyhedral function model. For this method, choosing advisable core function is an important factor that affects the fitting accuracy directly. This paper studies and compares several polyhedral function models, and makes it in application in some bridge construction
出处
《现代测绘》
2005年第2期20-22,共3页
Modern Surveying and Mapping
