| 资源三号测绘卫星 DSM 与AST ER GDEM 精度对比分析--以高海拔山区为例 |
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| 引用本文： | 张弛,葛莹,王冲,肖胜昌,李云婷,张骏源.资源三号测绘卫星 DSM 与AST ER GDEM 精度对比分析--以高海拔山区为例[J].测绘工程,2016,25(8). |
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| 作者姓名： | 张弛 葛莹 王冲 肖胜昌 李云婷 张骏源 |
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| 作者单位： | 河海大学 地球科学与工程学院,江苏 南京,210098;中国电力建设集团 昆明勘测设计研究院有限公司,云南 昆明,650051 |
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| 基金项目： | 云南省重大科技专项(2013ZB006)；卫星测绘技术与应用国家测绘地理信息局重点实验室课题(KLSMFA-201302) |
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| 摘 要： | 为了评价国产资源三号测绘卫星DSM数据质量,选取地貌类型丰富的云南省高海拔山区为试验样区,以1∶10 000实测地形图DEM为假定真值,以30m分辨率ASTER GDEM为评价参照,从高程精度和地形描述精度两方面着手,对国产资源三号测绘卫星DSM数据精确性进行分析。结果表明:国产资源三号测绘卫星DSM数据精度整体高于ASTER GDEM。
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| 关 键 词： | 资源三号测绘卫星(ZY-3) ASTER GDEM 高程精度 地形描述精度 |
Accuracy comparison between ZY-3 surveying and mapping satellite DSM and ASTER GDEM-a case of high altitude mountain areas |
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| ZHANG Chi,GE Ying,WANG Chong,XIAO Shengcang,LI Yunting,ZHAGN Junyuan.Accuracy comparison between ZY-3 surveying and mapping satellite DSM and ASTER GDEM-a case of high altitude mountain areas[J].Engineering of Surveying and Mapping,2016,25(8). |
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| Authors: | ZHANG Chi GE Ying WANG Chong XIAO Shengcang LI Yunting ZHAGN Junyuan |
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| Abstract: | In order to evaluate the accuracy of DSM data of ZY‐3 surveying and mapping satellite ,this paper selects the ZY‐3 DSM data in the high altitude mountain areas as typical areas with 1∶10 000 DEM as contrastive reference data ,analyzes the ZY‐3 DSM data with ASTER GDEM as reference ,and compares their accuracy in terms of elevation accuracy and accuracy of terrain representation .The results show that on the whole the data quality of ZY‐3 DSM is better than ASTER GDEM . |
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| Keywords: | ZY-3 surveying and mapping satellite (ZY-3) ASTER GDEM elevation accuracy accuracy of terrain representation |
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