工程控制网坐标平差值的相关性及其中误差的相对性
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摘要: 一个多级布设的工程控制网系统，基本源起算点只有一个，即原点。在估计各级控制点的坐标平差值中误差时，顾及起始数据误差的影响，则所有各级控制点的坐标平差值均相关，坐标平差值的中误差均相对于原点。Abstract: In an engineering control network with multi-order layout,there is only one starting point to compute, namely the origin. When estimating the mean square errors of adjustments of coordinates of control points at each order, it is found that there is a dependency between the adjustments of coordinates of those control points with regard to the effects of initial data errors and all the mean square errors of adjustments of the coordinates are relative to the origin.
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