地形要点模糊综合评估中的两个问题及其改进方法  

Two Problems in Fuzzy Comprehensive Assessment of Key Terrain and Its Improvement

作　　者：曾军[1,2] 张跃鹏[1,2] 

机构地区：[1]西安测绘研究所,陕西西安710054 [2]地理信息工程国家重点实验室,陕西西安710054

出　　处：《测绘科学与工程》2013年第5期56-59,共4页Geomatics Science and Engineering

摘　　要：模糊综合评估是地形要点评估的主要方法，但实践中存在评估失效和等级误判现象。通过分析评估模型中等级的划分、取小取大算子和最大隶属度原则可能引发的问题，逐项给出了改进方法。应用实例表明，改进后的方法能得出合理可靠的评估结果。The fuzzy comprehensive assessment is a main method for the key terrain evaluation; however, there are some problems of the failure of assessment and the misjudgment of grade in practice. This paper analyzes the problems caused by grade division, min -max operator, and maximum membership principle, and gives corresponding improvement methods respectively. Application examples show that these methods can obtain reasonable and reliable assessment results.

关 键 词：地形要点 模糊综合评估模型 评估失效 等级误判 取小取大算子 最大隶属度原则 

分 类 号：P283[天文地球—地图制图学与地理信息工程]