摘要
GPS测量的大地高精度达到了(3～4)×10-6,本文结合城镇控制测量对GPS高程拟合情况进行了分析。研究结果表明,通过施测少量均匀分布的GPS点的水准高程,采用BP神经网络方法拟合GPS点正常高可以部分替代水准高程或三角高程。
The accuracy of GPS measurement has reached（3 -4） ×10^-6. With the urban GPS control survey, the GPS height fitting is analyzed. The results show that, through measuring the leveling of a small number of GPS points which are evenly distributed, the leveling height or trigonometric leveling height can be replaced by the normal height of GPS points by using the method of BP neutral network.
出处
《测绘与空间地理信息》
2012年第3期78-79,82,共3页
Geomatics & Spatial Information Technology
