InSAR Deformation Monitoring and Analysis of Mining Area Based on Quadtree Filtering

Yang Xiao-ge; Wang Hua; Bai jun; Ng Alex Hay-Man; Li Ting-jun; Bai Yu-chao; Pi Ting-liang

doi:10.12052/gdutxb.220048

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InSAR Deformation Monitoring and Analysis of Mining Area Based on Quadtree Filtering

更新时间：2026-05-27

- InSAR Deformation Monitoring and Analysis of Mining Area Based on Quadtree Filtering
- Vol. 40, Issue 3, Pages: 99-104(2023)
- 作者机构：
  
  1. 广东工业大学土木与交通工程学院,广东,广州,510006
  2. 广州海川信息科技有限公司,广东,广州,510300
  3. 云南华联锌铟股份有限公司,云南,文山,663700
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.220048
  CLC： TD176;P237
- Online First：25 May 2023，
  
  Published：2023
- 稿件说明：
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杨小鸽, 王华, 柏俊, 吴希文, 李廷俊, 柏玉超, 皮廷亮. 基于四叉树滤波的InSAR矿区形变监测与分析[J]. 广东工业大学学报, 2023, 40(3): 99-104.

Yang Xiao-ge, Wang Hua, Bai jun, et al. InSAR Deformation Monitoring and Analysis of Mining Area Based on Quadtree Filtering[J]. 2023, 40(3): 99-104.
杨小鸽, 王华, 柏俊, 吴希文, 李廷俊, 柏玉超, 皮廷亮. 基于四叉树滤波的InSAR矿区形变监测与分析[J]. 广东工业大学学报, 2023, 40(3): 99-104. DOI： 10.12052/gdutxb.220048.

Yang Xiao-ge, Wang Hua, Bai jun, et al. InSAR Deformation Monitoring and Analysis of Mining Area Based on Quadtree Filtering[J]. 2023, 40(3): 99-104. DOI： 10.12052/gdutxb.220048.

摘要

时变去相干等因素导致矿区形变干涉图中存在大量的噪声，采用四叉树滤波方法能滤除InSAR解缠相位中的离散噪声点，从而获得干净的形变结果。本文以云南某露天开采的矿区为例，探讨了最小划分窗口与粗差阈值对四叉树滤波效果的影响，并采用2019~2021年间的Sentinel-1卫星数据计算了该矿区的地表形变时间序列。结果表明，该矿区在监测期间存在显著的地表形变，大致集中在3个区域，形变特征在时域上既有抬升也有沉降，总体呈波浪状，最大沉降量达到67.3 mm，最大抬升量达79.3 mm。InSAR监测结果与32个地面测量机器人41个时段的结果差异为±10.9 mm。

Abstract

Due to factors such as loss of coherence between repeated SAR acquisitions

the interferograms are often very noisy. The quadtree filter can remove such discrete noise in unwrapped interferograms and obtain clean deformation results. A mining area in Yunnan is investigated

discussing how the minimum division window and the gross error threshold affect the performance of quadtree filtering. The surface deformation time series of the mining area is obtained using Sentinel-1 satellite data from 2019 to 2021. The results show that the mining area has significant surface deformation during our monitoring period

focusing mainly on three regions with both uplift and subsidence. The deformation time series present wave-like variations in the time domain. The maximum incremental subsidence and uplift are up to 67.3 and 79.4 mm in

12 days

respectively. The difference is

$ \pm 10.9\;\mathrm{m}\mathrm{m} $

img text_id='M2' class='formula-img' style='display:none;' src='gdgydxxb-40-3-99_M2.jpg'>

between InSAR and 41 repeated observations from 32 ground-based total stations.

关键词

Keywords

references

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WANG H, WRIGHT T J, YU Y, et al . InSAR reveals coastal subsidence in the Pearl River Delta, China [J ] . Geophysical Journal International, 2012, 191(3): 1119-1128.

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