【摘要】 本文通过对利用地形均衡异常将离散地面重力异常拟合为7′30″×7′30″格网平均空间重力异常及考虑地形大地水准面的影响,使G₁项改正及其它影响的改正能满足大地水准面精化要求等问题的研究,从根本上解决了卫星定位结果提供的大地高求解正常高问题,满足了长庆石油天然气勘探开发应用GPS定位技术精确确定正高的要求,对于提高天然气勘探精度及开发建设具有重要意义。更多还原

【Abstract】 Author of this paper made a further research on the subject of optimized geoid determination, such as transform discrete ground gravity anomalies into 7’30"× 7’30" mean space gravity anomalies and correct the item of G1 as well as other factors on proper use of the terrain correction. This method completely solved the problem of computing height by processing GPS data. For meeting the requirement of high precise GPS techniques for oil prospecting in Chang Qing and its development, adoption of this method will get a good return.更多还原