GPS高程的应用在于大地水准面

Application of GPS Height Uirs in GE Oid

由于GPS技术结合高精度、高分辨率的大地水准面模型可以获得地面点的正常高,进而取代传统的高程测量方法,因此,精化我国区域大地水准面有重要的是实用价值,它是GPS高程得到广泛应用的前提条件。文中探讨的大地水准面的方法以及我国近几年来在这一领域取得的成果。

Utilizing GPS technique,along with the high precision and high resolution geoid model,can obtain the normal height of the certain point on the ground Thus it can be employed to substitute the traditional method of height survey such as trigonometric leveling and low precision leveling.Therefore,refining the regional geoid or our country has brought forth an important practical value and has been the prior condition for the wide application of GPS height.The paper discussed the way of refining geoid and the achievements that our country has obtained in this field in recent years.