摘要
研究根据控制网的GPS高程及水准高程数据,利用平面相关法、二次曲面拟合法等数学模型在最小二乘配置下拟合区域似大地水准面。试验研究表明:二次曲面拟合法的拟合精度能够满足四等水准精度要求,因而GPS高程在工程建设领域具有广阔的应用前景。
In this paper,according to control network with the GPS height and leveling data,Regional quasigeoid was fitted by using the models of plane correlation fitting and quadratic surface fitting under the condition of least squares collocation.The research result indicats that the model precision of quadratic surface fitting can meet the precision of fourth grade leveling,the application of GPS height has a wide prospect of application in engineering construction.
出处
《地理空间信息》
2010年第4期72-73,76,共3页
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