基于InSAR技术的滑坡位移变形监测应用研究

Application research of landslide displacement and deformation monitoring based on InSAR technology

针对大面积区域多处滑坡位移变形难以有效监测的问题,提出了采用PSInSAR和SBAS-InSAR相结合的技术方法,实现了大面积范围内滑坡位移变形高精度监测。基于研究区SENTINEL 1卫星升轨数据,对滑坡SAR可视性进行分析研究,生成研究区滑坡位移监测点空间分布及变形数据成果,不仅可以有效识别滑坡风险点,还可以对其变形程度进行准确呈现,研究结果可用于后续大面积区域的滑坡位移变形监测及重要风险点识别。

Aiming at the problem that it is difficult to effectively monitor the displacement and deformation of multiple landslides in a large area,this paper proposes the technology method combining PSInSAR and SBAS-InSAR to realize the high-precision monitoring of landslide displacement and deformation in a large area.Based on the orbit lifting data of SENTINEL 1 satellite in the study area,the SAR visibility of landslides is analyzed and studied,and the spatial distribution and deformation data of landslide displacement monitoring points in the study area are generated,which can not only effectively identify landslide risk points,but also accurately present their deformation degree.The results can be used to monitor landslide displacement and deformation in large areas and identify important risk points.