Bo Zhipeng, Liu Guohui, wang Xiaoqing. Several Probems on the Repeated National Levelling Nnetwork[J]. Geomatics and Information Science of Wuhan University, 1991, 16(3): 31-37.
Citation: Bo Zhipeng, Liu Guohui, wang Xiaoqing. Several Probems on the Repeated National Levelling Nnetwork[J]. Geomatics and Information Science of Wuhan University, 1991, 16(3): 31-37.

Several Probems on the Repeated National Levelling Nnetwork

  • Several practical problems on the repeated levelling network have been investigated in this paper,including the choice of the adjustment model,the required accuracy for weighting,and the necessary abundant observations for postestimation.Through the computation and analysis,some useful conclusions have been arrived.
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