gps高程异常拟合研究论文

1.不是多此一举，用高程联测的方式其实质也进行局部大地似水准面拟合的。已知点的大地高和正常高内插高程异常，反求解出其他点的正常高。这和用模型是一回事，相当于没用现成的，自己做了一个来用。不过这只适合小范围比较而且平的地方。你去山地，陡峭的地方肯定不行。这些地方高程异常之间的差距和变化是极大的。区区几个点的高程联测很难完全反应场的特征，拟合出来与实际不服。偏差极大。2.做静态基线观测一般肯定要联测的。也可以用转换参数法，不过精度取决于参数的精度。用参数不具有普遍意义，各地用的投影本身就是有形变等局限，已经属于近似过的再近似。所以转换参数一般精度不是特别高，而且全国各地的参数是不一样的，所以用起来没有普遍性

In recent years, GPS geodesy and deformation monitoring applications increasingly wide range of GPS measured elevation of the earth elevation. However, the elevation of China's application system is based on a system like the normal elevation of the geoid. Not parallel to the earth elevation plane and quasi-geoid height anomaly. GPS elevation only after the abnormal elevation of the correction can be applied to engineering measurement and Urban systems. So, how to strike a high-precision height anomaly GPS Height into the key issues. This article describes the GPS Height, normal high and is high concept and three mutual relationship between the height anomaly concept, and described the principle of GPS Height, in the collection, access, and analysis in recent years at home and abroad for GPS a high standard of research methods and technology, and draws on the results of these studies on the basis of our national land area is wide, the terrain is particularly complex, large features like the geoid undulation. Using a variety of fitting methods (polynomial curve fitting, polynomial surface fitting, multi-faceted function fitting, flat-fitting) on the quasi-geoid fitting. Yanzhou Coal Mining GPS measured data and geometric standards as the known data, to be legitimate, polynomial surface fitting and plane fitting to fitting polynomial curve. Then, the MATLAB language programming on all of the algorithms in this paper and case analysis, comparison and research. And draw some conclusions

第一 你没搞懂意思 用高程异常拟合就是联测的一种手段 第二 坐标系统间的联测有多种方法 不同的方法的技术手段和达到精度都不同