DS-InSAR技术在北京大兴国际机场地表沉降监测中的应用

doi:10.13474/j.cnki.11-2246.2025.1206

测绘通报 ›› 2025, Vol. 0 ›› Issue (12): 34-40.doi: 10.13474/j.cnki.11-2246.2025.1206

• 学术研究 • 上一篇

DS-InSAR技术在北京大兴国际机场地表沉降监测中的应用

金霄, 王鹏, 葛礼呈, 王雨佳

苏州科技大学地理科学与测绘工程学院, 江苏苏州 215009

收稿日期:2025-04-01 发布日期:2025-12-31
通讯作者: 王鹏。E-mail:pwang@mail.usts.edu.cn
作者简介:金霄(2000—),男,硕士生,主要研究方向为InSAR地表形变监测技术。E-mail:1249370457@qq.com
基金资助:
国家自然科学基金青年科学基金(41801381);中国三峡建工(集团)有限公司科研项目(BHT/0931)

Application of DS-InSAR technology in surface settlement monitoring at Beijing Daxing International Airport

JIN Xiao, WANG Peng, GE Licheng, WANG Yujia

School of Geography Science and Geomatics Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

Received:2025-04-01 Published:2025-12-31

摘要/Abstract

摘要： 针对机场跑道相干性低使得常规InSAR技术无法提取足够高质量像元的问题,本文利用2022年1月—2023年12月的61景Sentinel-1A卫星数据,采用基于双样本KS检验和协方差矩阵特征值分解的分布式散射体合成孔径雷达干涉测量(DS-InSAR)方法,获得北京大兴国际机场工作区域的地表沉降监测结果,并分析形变时空分布特征及影响因素。结果表明,研究区地表沉降速率范围为-38.9～19.0 mm/a,DS-InSAR获得的监测点的密度和精度较高,能够反映更加丰富的地表形变细节;各条跑道存在不同程度的沉降;西三飞行区沉降相对严重;航站楼整体结构较为稳定,未呈现明显沉降趋势。

关键词: 时序InSAR, 沉降监测, 分布式散射体, 相位优化

Abstract: Aiming at the problem that the low coherence of airport runway makes it impossible for conventional InSAR technology to extract sufficient high-quality pixels,this paper uses 61 Sentinel-1A satellite data from January 2022—December 2023 to obtain the surface settlement monitoring results of Beijing Daxing International Airport by using the distributed scatterer synthetic aperture radar interferometry (DS-InSAR)method based on two-sample KS test and covariance matrix eigenvalue decomposition.The spatio-temporal distribution characteristics and the influencing factors of deformation are analyzed.The results show that the surface settlement rate in the study area ranges from -38.9～19.0mm/a,and the density and accuracy of the monitoring points obtained by DS-InSAR is higher,which can reflect more abundant surface deformation details.There are different degrees of settlement in each runway; The settlement in the West 3 flight area is relatively serious,and there are multiple sections with large settlement rate gradient values on the West 3 runway.The overall structure of the terminal building is relatively stable,and there is no obvious deformation trend.

Key words: time series InSAR, settlement monitoring, distributed scatterers, phase optimization

中图分类号:

P237

金霄, 王鹏, 葛礼呈, 王雨佳. DS-InSAR技术在北京大兴国际机场地表沉降监测中的应用[J]. 测绘通报, 2025, 0(12): 34-40.

JIN Xiao, WANG Peng, GE Licheng, WANG Yujia. Application of DS-InSAR technology in surface settlement monitoring at Beijing Daxing International Airport[J]. Bulletin of Surveying and Mapping, 2025, 0(12): 34-40.

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DS-InSAR技术在北京大兴国际机场地表沉降监测中的应用

Application of DS-InSAR technology in surface settlement monitoring at Beijing Daxing International Airport

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