| 基于资源三号测绘卫星DSM的精度评估研究 |
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| 引用本文： | 张弛,葛莹,张骏源.基于资源三号测绘卫星DSM的精度评估研究[J].测绘与空间地理信息,2016(4):159-161. |
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| 作者姓名： | 张弛 葛莹 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 |
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| 摘 要： | 作为我国首颗民用立体测绘卫星数据产品,ZY-3 DSM对于我国地学分析具有极其重要的作用。本文在顾及地貌情况前提下,选取云南省高海拔山区为试验区,辅以1∶10 000野外实测地形图DEM为参考值,将分辨率为15 m的ZY-3 DSM与90 m的SRTM DEM从高程精度和地形精度进行较为全面的数据质量比较。结果表明:ZY-3 DSM在高程精度和地形精度均有更好的表现。总体看来,ZY-3 DSM数据质量更高,具有更广泛的利用价值。
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| 关 键 词： | 资源三号测绘卫星 数字表面模型 SRTM DEM 数据质量 地形精度 |
ZY-3 Surveying and Mapping Satellite DSM Accuracy Assessment |
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| ZHANG Chi;GE Ying;ZHANG Jun-yuan.ZY-3 Surveying and Mapping Satellite DSM Accuracy Assessment[J].Geomatics & Spatial Information Technology,2016(4):159-161. |
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| Authors: | ZHANG Chi;GE Ying;ZHANG Jun-yuan |
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| Institution: | ZHANG Chi;GE Ying;ZHANG Jun-yuan;School of Earth Science and Engineering,Hohai University; |
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| Abstract: | In order to understand the accuracy of Resources satellite three DSM data , selecting ZY-3 DSM data in the high elevation mountain area , treating the field surveying data DEM and SRTM DEM as reference contrastive data , and compare their accuracy with field surveying data through elevation accuracy and accuracy of terrain representation .The studying results show the elevation accuracy of ZY-3 DSM is better than the SRTM DEM .In terms of the accuracy of terrain representation , ZY-3 DSM is closer to the theoreti-cal value.Summarizing the above analysis , the accuracy of ZY-3 DSM is better than the SRTM DEM . |
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| Keywords: | ZY-3 Surveying and Mapping Satellite (ZY-3) digital surface model SRTM DEM data quality accuracy of terrain representation |
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