似大地水准面的模拟与GPS高程转换

A Simulating and Elevation Transforming System of Quasi Geoid in GPS Survey Area

对GPS高程测量的基本原理和基本方法进行了较详细时讨论，提出了根据测区的实际情况选择不同的GPS高程转决的方法，并且应用面向对象的程序设计原理，编制了在Windowe环境下运行的似大地水准面拟合与转换的数据处理系统。经实验与生产实践检核，高程转换计算结果符合精度较好，该系统使用方便，具有实用价值．

On the basis of the principle and methods for GPS eIevation Measuement,the paPer puts forward that the transforming method should be selected according to the actual situation in the survey area, and a dataprocessing system for quasi geoid fitting and transforming is programmed in Windows with the object orienteddesign fundamental in which the result accuracy of elevation tran forming is higher them that with other methods by the practical test. The system is convenient in use and has practical values.