广东工业大学学报2025，Vol.42Issue(2)：103-111,9.
Sentinel-1数据在极化时序InSAR技术中的适用性分析
An Applicability Analysis of Sentinel-1 Data in Polarization Time-series InSAR Technology
摘要
Abstract
Sentinel-1 data have been widely applied in the Time-series Interferometric Synthetic Aperture Radar(TS-InSAR)technology.To assess the applicability of dual-polarization data from the Sentinel-1 satellite in Polarimetric Persistent Scatterer Interferometry(PolPSI)technology,based on 47 dual-polarization Sentinel-1 images,the surface deformation of Shenzhen and Zhongshan is monitored using both the TS-InSAR technology and the PolPSI technology.The results show that the PolPSI technology using Sentinel-1 data can identify a greater number of Persistent Scatterer(PS)candidates by analyzing the polarization information(scattering mechanism or statistical characteristic)of pixels.The PolPSI technology exhibits lower average temporal coherence on the reference network arc,but it can provide a greater number of high-quality arcs(with a temporal coherence greater than 0.6).The PolPSI technology can increase the density of PS in urban surface monitoring.In summary,PolPSI technology utilizing Sentinel-1 data can provide more detailed and accurate deformation monitoring information on urban surface compared to TS-InSAR technology.关键词
沉降/PolPSI/时序InSAR/双极化/Sentinel-1Key words
subsidence/PolPSI/time-series InSAR/dual-polarization/Sentinel-1分类
建筑与水利引用本文复制引用
黄恒威,吴希文,王华..Sentinel-1数据在极化时序InSAR技术中的适用性分析[J].广东工业大学学报,2025,42(2):103-111,9.基金项目
国家自然科学基金资助面上项目(42274016) （42274016）
广东省林业科学数据中心项目(2021B1212100004) （2021B1212100004）
广东省自然科学基金资助项目(2021A1515011483) （2021A1515011483）
