1) Elevation transferring
高程传递
1.
Three elevation transferring methods, which are hanging steel ruler, GPS and upright measuring elevation with total station.
通过试验对悬挂钢尺、GPS测高和全站仪垂直测高三种高程传递方法进行了理论分析与精度比较,并讨论了各种方法在实际应用中的优点与局限性。
2) elevation transmission
高程传递
1.
With massive measured data of the river-crossing trigonometric leveling survey,the change rule of atmospheric refraction coefficient is calculated and analyzed in elevation transmission region of a bridge,and some beneficial conclusions are obtained.
从三角高程测量的原理出发,推导了利用对向三角高程测量计算大气折光系数的公式,并利用跨江三角高程测量的大量实测数据,计算分析了某大桥跨江高程传递区域大气折光系数的变化规律,得出一些有意义的结论。
3) height transmission
高程传递
1.
Total station height transmission technology and its application in height control of Sutong Bridge tower construction;
全站仪竖直高程传递技术及其在苏通大桥测控中的应用
4) elevation transference
传递高程
5) height transfer across obstacle
跨障碍高程传递
1.
Since the general geometrical fitting method of GPS level cannot be used directly for height transfer across obstacle when the height datum planes of both sides of obstacle are not consistent, a new method named GPS astronomical leveling is proposed based on astronomical leveling.
鉴于障碍物两侧的高程基准不一致,采用常规的GPS水准数值拟合方法,无法实现跨障碍高程传递,提出了一种天文GPS水准方法,即采用常规GPS水准方法分别拟合障碍物两侧的似大地水准面形状,分别求得相对于WGS 84的地面垂线偏差;由于两侧所求垂线偏差属于同一系统,因此,可根据天文水准原理,进一步计算出跨障碍的高程异常差;再由GPS所测大地高差,可获得跨障碍的正常高差。
2.
The reason why GPS leveling can t be used for height transfer across obstacle is that the height datum of both sides of obstacle is not consistent.
GPS水准无法直接应用于跨障碍高程传递,其关键原因在于障碍物两侧的高程基准不一致。
3.
The height transfer across obstacle with long-distance and high precision is one of difficulties in engineering survey all the time.
远距离、高精度的跨障碍高程传递一直是工程测量中的一个难点，传统方法的困难来自于远距离观测的分辨率过低。
6) long-distance elevation transmission
长距离高程传递
补充资料：大地高程
见高程系统。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条