基于时空尺度的线位统一不确定性模型An unified uncertainty model of linear position based on spatial-temporal scale
蔡剑红,李德仁,朱道林
摘要(Abstract):
在GIS矢量数据中,线对象在建模过程中存在的建模误差是必然的,并且成为不确定性内容中的重要组成部分,而现有的线位不确定性模型则往往将其忽略,本文充分考虑建模误差,采用误差传播律,对附有建模误差的二维折线不确定性模型进行估计,其中,e带模型、g带模型是其中的一个特例,即当且仅当建模误差为零时,便是e带模型、g带模型。
关键词(KeyWords): 时空尺度;线位统一不确定性模型;建模误差;误差传播律;不确定性可视化
基金项目(Foundation): 国家自然科学基金(41001372)
作者(Author): 蔡剑红,李德仁,朱道林
DOI: 10.16251/j.cnki.1009-2307.2011.04.002
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