GPS高程拟合方法在风场测量中的应用  

Application of GPS Height Fitting Method in the Wind Field Measurement

作　　者：孟现彪[1,2] 史雅茹[2] 冯禹[2] 闫利[1] 

机构地区：[1]武汉大学测绘学院,湖北武汉43007 [2]内蒙古电力勘测设计院,内蒙古呼和浩特010020

出　　处：《全球定位系统》2010年第1期43-47,共5页Gnss World of China

摘　　要：在风力发电场场址测量中,GPS定位测量技术可以得到高精度的平面位置和大地高差,但在实际应用中,地面点的高程常采用的是正常高高程系统,因此,需将GPS大地高转换成正常高。针对面积较大或地形变化比较复杂的GPS测区,灵活运用GPS高程拟合的方法和GPS水准方法进行施测,可以提高拟合精度,并通过实测数据,验证了该方法的有效性。Wind farm sites in the measurement, GPS positioning technology is used to get accurate measurement plane location and the earth elevation difference, but in practical applications, the ground point elevation often used is a normal high-elevation systems, therefore, need to turn GPS geodetic high conversion into normal. Terrain for a bigger or more complex GPS measurement areas, flexible use of GPS elevation fitting method and the standard method of GPS measurements can improve the fitting precision, and through experimental data to verify the validity of the method.

关 键 词：GPS高程 高程异常 高程拟合 正常高 

分 类 号：P224[天文地球—大地测量学与测量工程]