[1]沈富强,刘 飞*,张骏骁.多平台国产SAR在复杂山区地形测绘中的精度对比与适用性[J].山地学报,2025,(5):776-786.[doi:10.16089/j.cnki.1008-2786.000929]
　SHEN Fuqiang,LIU Fei*,ZHANG Junxiao.Accuracy Comparison and Applicability of Domestic SAR in Different Platforms for Topographic Mapping in Complex Mountain Areas[J].Mountain Research,2025,(5):776-786.[doi:10.16089/j.cnki.1008-2786.000929]
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多平台国产SAR在复杂山区地形测绘中的精度对比与适用性()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2025年第5期
页码:
776-786
栏目:
山地技术
出版日期:
2025-12-30

文章信息/Info

Title:
Accuracy Comparison and Applicability of Domestic SAR in Different Platforms for Topographic Mapping in Complex Mountain Areas
文章编号:
1008-2786-(2025)5-776-11
作者:
沈富强1; 2; 刘 飞2*; 张骏骁3
(1. 四川大学 电子信息学院,成都 610065; 2. 四川测绘地理信息局测绘技术服务中心,成都 610083; 3. 齐鲁空天信息研究院,济南 250101)
Author(s):
SHEN Fuqiang1; 2;  LIU Fei1*;  ZHANG Junxiao3
(1. School of Electronic Information, Sichuan University, Chengdu 610065, China; 2. Surveying and Mapping Technology Service Center, Sichuan Bureau of Surveying, Mapping and Geoinformation, Chengdu 610083, China; 3. Qilu Institute of Aerospace Information, Jinan 250101, China)
关键词:
数字高程模型(DEM);  国产SAR;  干涉测量;  复杂山区
Keywords:
Digital Elevation Model(DEM);  domestic SAR;  Interferometric Synthetic Aperture Radar(InSAR);  complex mountainous area
分类号:
P237
DOI:
10.16089/j.cnki.1008-2786.000929
文献标志码:
A
摘要:
中国西部复杂山区常年雨雾遮蔽,光学影像获取困难,严重制约DEM(Digital Elevation Model)获取与建模。国产机载、星载SAR(Synthetic Aperture Radar)凭借高重访、强穿透优势,在地表形变监测与地形测绘中应用前景广阔,但针对大高差山区的系统性测图研究仍属空白。本文分别采用高分三号、陆探一号卫星SAR与国产机载毫米波SAR,基于合成孔径雷达干涉测量技术(Interferometric Synthetic Aperture Radar,InSAR)生成试验区数字高程模型(Digital Elevation Model,DEM)并开展精度评定,对比分析不同波段、不同平台SAR在复杂山区的测图能力。结果表明:(1)机载毫米波SAR DEM中误差2.292 m,精度最高; 高分三号UFS模式次之,中误差4.677 m,满足1:10 000地形图测绘规范;(2)陆探一号因垂直基线偏小,中误差46.559 m,精度受限。本研究首次实现多平台国产SAR生成DEM系统对比,可以为国产SAR在复杂山区大比例尺测图中的应用提供技术依据与决策参考。
Abstract:
Persistent rain and fog in the complex mountainous regions of western China severely hinder the acquisition of optical imagery, thereby restricting the generation and modeling of digital elevation models(DEMs). Domestic airborne and spaceborne Synthetic Aperture Radar(SAR)systems, with their advantages of high revisit frequency and strong penetration capability, offer broad application prospects in topographic mapping and surface deformation monitoring. However, their systematic mapping research in high-relief mountainous areas remained largely unexplored.
In this study, GF-3, LuTan-1 satellite SAR and domestic airborne millimeter-wave SAR were used to generate DEMs of the test area, and their accuracies were evaluated by comparison of the mapping capabilities with different bands and platforms in complex mountainous terrain.
(1)It found the DEM derived from airborne millimeter-wave SAR achieved the highest accuracy with a root mean square error(RMSE)of 2.292 m, followed by GF-3 in UFS mode with an RMSE of 4.677 m, meeting the specifications for 1:10 000 topographic mapping.
(2)Due to its small perpendicular baseline, LuTan-1 had a lower accuracy with an RMSE of 46.559 m.
This study presents the first systematic comparison of DEMs derived from multiple domestic SAR platforms, providing technical support and decision-making references for the application of domestic SAR in large-scale topographic mapping within complex mountainous regions.

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备注/Memo

备注/Memo:
收稿日期(Received date): 2025-03-15; 改回日期(Accepted date):2025-10-22
基金项目(Foundation item): 国家自然科学基金(42230102)。 [National Natural Science Foundation of China(42230102)]
作者简介(Biography): 沈富强(1987-),男,山东枣庄人,博士研究生,高级工程师,主要研究方向:InSAR、多源数据融合。[SHEN Fuqiang(1987-), male, born in Zaozhuang, Shandong Province, Ph.D. candidate, senior engineer, research on InSAR and Multi-source data fusion] E-mail: joeq2015@sina.com
更新日期/Last Update: 2025-10-20