【摘要】 现有的线元位置不确定性模型 ,如“e 带”、“g 带”等 ,其带宽是可变的 ,在应用上不及“ε -带”广泛 ,但“ε -带”的宽度不易确定。本文引入熵理论 ,根据线元的平均信息熵确定了带宽 ,提出了线元的平均熵带。所提的指标既考虑了“ε -带”等带宽的要求 ,又考虑到了线元上误差分布的不均匀特点。选用该指标作为线元的位置不确定性度量具有一定的优越性更多还原

【Abstract】 Both the existed “e\|band” and the “g\|band” have a variable band width and their applications are less than ε\|band, but the width of ε\|band can’t be easily determined.The model of entropy uncertainty band is presented based on average value in this paper.It excels existed other models due to the characteristic of ε\|band and entropy while a suitable measure index of positional uncertainty for line segments.更多还原