Establishment of High Precision Horizontal and Vertical Control Network in Zoucheng City
2013 ◽
Vol 864-867
◽
pp. 2787-2791
Keyword(s):
The paper uses D level, E level and the level of GPS control network establishment satellite space geodetic network in Zoucheng city, through the baseline calculating, classic adjustment of free network, three-dimensional unconstrained adjustment and two-dimensional constraint adjustment to get the WGS-84 three dimensional coordinates and 1980 xi 'an horizontal coordinates of control points; then using the fourth-order levelling connection survey all D-level and part E-level control points to build vertical control network, for the remaining GPS control points we utilize quadric function method using GPS elevation fitting given its elevation seek to obtain three-dimensional coordinates of all the basic control points.
2013 ◽
Vol 846-847
◽
pp. 888-892
Keyword(s):
2021 ◽
Keyword(s):
2021 ◽
Vol 35
(13)
◽
pp. 2150168
2021 ◽