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| 基于DEM的坡度算法分析及精度探讨 | |
| 引用本文： | 强晓焕,元昌安. 基于DEM的坡度算法分析及精度探讨[J]. 南昌水专学报, 2005, 24(2): 41-45 |
| 作者姓名： | 强晓焕 元昌安 |
| 作者单位： | 广西师范学院资源与环境科学学院，广西师范学院信息技术系 广西南宁 53 0 0 0 河南理工大学测量工程系，河南焦作 4540 0 0，广西南宁 53 0 0 0 1 |
| 基金项目： | 广西自然科学基金资助项目(0339039). |
| 摘 要： | 坡度是最基本的地形因子之一.介绍了基于DEM的坡度计算方法,对坡度分级统计中的误差来源分类进行分析,并结合GIS软件产品用实验法分析其DEM精度,以及各误差因素对坡度统计计算的影响,以便在实践中根据不同资料适当地选择算法和软件产品,进而提高工程项目的质量. |
| 关 键 词： | DEM 坡度 误差 精度 算法 |
| 文章编号： | 1006-4869(2005)02-0041-05 |
| 修稿时间： | 2005-02-23 |
Research of Algorithms and Accuracy for Calculating Slope Based on Digital Elevation Model |
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| QIANG Xiao-huan. Research of Algorithms and Accuracy for Calculating Slope Based on Digital Elevation Model[J]. Journal of Nanchang College of Water Conservancy and Hydroelectric Power, 2005, 24(2): 41-45 | |
| Authors: | QIANG Xiao-huan |
| Affiliation: | QIANG Xiao-huan~ |
| Abstract: | Slope is one of most frequently used terrain parameters in Geo-Science model.This paper introduces some calculating methods about slope based on Digital Elevation Model(DEM), and discusses the error's source in shope statistic.This paper also analyzes the accuracy of slope in different error's source and studies the accuracy of the different GIS softwares by experiment, and makes clear the effect of different error's source.Accordingly GIS softtares are selected and used in reason with different datum and technology in practice, and projects quality will be improved. |
| Keywords: | DEM slope error accuracy algorithms |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |