摘要
基于等概率密度误差模型建模原理和数值算法,研究矢量GIS平面一般曲线误差模型定位精度,给出定位精度描述指标,并通过实例计算与分析,得出使用误差模型平均带宽比使用误差模型面积更能反应一般曲线的真实精度的结论,便于指导生产与应用。
Based on the modeling principle of the equivalent probability density error model （ marked as ＂Tepdem＂） and the numerical algorithm, this paper provides an approach on how to ascertain a location precision description indicator for the ＂Tepdem＂ of a 2D generic curve in vector GIS , and then provides the important conclusion of using the average width of the ＂Tepdem＂ can more express the actual precision of the generic curve than using the area of the ＂Tepdem＂ by computation and analysis of example, which could be looked as the guidance for the production and application.
出处
《测绘工程》
CSCD
2008年第3期1-5,共5页
Engineering of Surveying and Mapping
基金
国土资源部百名优秀青年科技人才计划资助(2005)
