测绘通报 ›› 2026, Vol. 0 ›› Issue (2): 12-17.doi: 10.13474/j.cnki.11-2246.2026.0203

• 水陆环境监测与资源评估 • 上一篇    下一篇

基于SBAS与DS-SBAS的小浪底库区沉降监测对比

李鹏豪1, 李爱国1, 张诗玉2   

  1. 1. 河南理工大学测绘与国土信息工程学院, 河南 焦作 454000;
    2. 商丘师范学院测绘与规划学院, 河南 商丘 476000
  • 收稿日期:2025-07-28 发布日期:2026-03-12
  • 作者简介:李鹏豪(1995—),男,硕士,助理工程师,主要从事InSAR技术的应用研究工作。E-mail:lipenghao@163.com
  • 基金资助:
    国家自然科学基金(U1304404)

A comparison study on land subsidence monitoring in the Xiaolangdi Reservoir area based on SBAS and DS-SBAS

LI Penghao1, LI Aiguo1, ZHANG Shiyu2   

  1. 1. School of Surveying and land information Engineering, Henan Polytechnic University, Jiaozuo 454000, China;
    2. School of Surveying and Planning, Shangqiu Normal University, Shangqiu 476000, China
  • Received:2025-07-28 Published:2026-03-12

摘要: 小浪底水库是黄河水沙调控的核心,对其进行沉降监测是保障其长期有效运行的关键。为准确获取小浪底水库的沉降信息,本文分别采用常规SBAS技术和DS-SBAS技术对2018—2024年60景Sentinel-1A卫星影像进行了时序干涉处理,并对两者结果进行对比。结果表明,SBAS与DS-SBAS得到的同经纬度监测点沉降速率相关系数为0.96,表明两种监测结果一致性较高;DS-SBAS提取的高相干点数量比SBAS提取的提高约54%,对沉降速率为0~5 mm/a的监测效果更加明显。因此,DS-SBAS可作为库区沉降监测的有效手段。

关键词: SBAS, DS-SBAS, SBAS-InSAR, 地面沉降, 小浪底水库

Abstract: Xiaolangdi Reservoir is the core of water and sediment regulation in the Yellow River.The subsidence monitoring of the reservoir is crucial to ensuring its long-term and effective operation.To accurately obtain the settlement information of Xiaolangdi Reservoir,conventional SBAS (small baseline subset)technology and DS-SBAS (distributed scatterer small baseline subset)technology are respectively used for time-series interferometric processing of 60 Sentinel-1A satellite images from 2018 to 2024,and their results are compared.The results show that the correlation coefficient of settlement rates at monitoring points with the same longitude and latitude obtained by SBAS and DS-SBAS is 0.96,indicating a high consistency between the two monitoring results.The number of high-coherence points extracted by DS-SBAS is approximately 54% higher than that by SBAS,and its monitoring effect is more significant in the settlement rate range of 0~5 mm/a.Therefore,DS-SBAS can be used as an effective method for settlement monitoring in the reservoir area.

Key words: SBAS, DS-SBAS, SBAS-InSAR, land settlement, Xiaolangdi Reservoir

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