图斑形状特征对原面积中误差公式的修正——一个面积中误差估算模型

本文考虑到多边形图斑形状特征对面积量算误差的显著影响，用一“特征参数”T，将图斑形状特征量化。经参数T修正的面积中误差估算公式有较低的“偏离度”，且数学形式简单，采用修正模型可设定新的面积量算容许误差，并可改进图斑面积平差的传统方法。

A MODIFICATION TO AN AVAILABLE FORMULA OF AREASTANDARD ERROR WITH POLYGONAL SHAPE FEATURE--AN AERA ERROR MODEL

: In this paper, a feature parameter is found for quantizing the polygonal shape fea ture, which has notable effects on area measurement error. This parameter is applied to modify an available area error model, and the modified model is lower bias in area error estimation and simpler in math form as compared with two available models. By use of the modified model, area measurement tolerance can be formulated ration ally, and the traditional method of area adjustment can be improved as well.