TAO Benzao, LAN Yueming. The Statistical Estimation Method of GIS Overlay Uncertainty[J]. Geomatics and Information Science of Wuhan University, 2001, 26(2): 101-104.
Citation: TAO Benzao, LAN Yueming. The Statistical Estimation Method of GIS Overlay Uncertainty[J]. Geomatics and Information Science of Wuhan University, 2001, 26(2): 101-104.

The Statistical Estimation Method of GIS Overlay Uncertainty

  • According to GIS data of manual digitizing map,this paper uses coordinates of the same name point on multi-lift overlay to estimate uncertainty of the position data and gives a calculating method.Its main contents include using testing method of dual sub-sample array to do gross error testing to manual digitizing data of two-lift overlay,and giving the synthetic estimation method of unit weight variances.The characteristic is the application of the principle of statistical test and statistical estimation brings a more reasonable and simple result.
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