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IDENTIFICATION AND MEASUREMENT OF DEFORMATION USING SENTINEL DATA AND PSINSAR TECHNIQUE IN COALMINES OF KORBA
PSInSAR Korba Sentinel-1 Deformation
2019/2/27
Natural Resources extraction for production of goods increases the stress on land and on the environment. Coal Mines are the primary source for energy production. This process increases the continuous...
RESEARCH ON METHODS OF HIGH COHERENT TARGET EXTRACTION IN URBAN AREA BASED ON PSINSAR TECHNOLOGY
PS points extraction Dispersion of intensity Amplitude threshold Phase analysis Ground deformation
2018/5/14
PSInSAR technology has been widely applied in ground deformation monitoring. Accurate identification of Persistent Scatterers (PS) is key to the success of PSInSAR data processing. In this paper, the ...
MEASURING SURFACE SUBSIDENCE IN WUHAN, CHINA WITH SENTINEL-1 DATA USING PSINSAR
Subsidence Monitoring TOPS PSInSAR Hazards Sentinel SARPROZ
2018/5/11
We use the potential of Sentinel-1 for urban subsidence monitoring. A case study was conducted in Wuhan using Sentinel-1A images acquired from 22nd June 2015 to the 24th of April 2017 acquired from an...
MONITORING THE DEFORMATION OF HIGH-RISE BUILDINGS IN SHANGHAI LUIJIAZUI ZONE BY TOMO-PSINSAR
High-rise buildings Lujiazui Zone Thermal expansion Creep and shrinkage Tomo-PSInSAR
2018/5/17
In this study, we utilize a Tomography-based Persistent Scatterers Interferometry (Tomo-PSInSAR) approach for monitoring the deformation performances of high-rise buildings, i.e. SWFC and Jin Mao Towe...
PSINSAR IMPROVEMENT USING AMPLITUDE DISPERSION INDEX OPTIMIZATION OF DUAL POLARIMETRY DATA
Polarimetric Optimization Persistent Scatterer Candidate PSInSAR Amplitude Dispersion Index
2016/1/15
Persistent Scatterer Interferometry for SAR data (PSInSAR) improves the ability of conventional InSAR time-series methods by detecting and analysing pixels where the portion of spatiotemporal decorrel...
An Analysis of Surface Subsidence in Chiba Using PSInSAR Technique
PSInSAR Surface subsidence The public master image Interferograms PS points
2015/7/27
Currently, surface subsidence has become an important problem what we are facing. Because of complex topography, uneven distribution of rainfall, and the fast development of urbanization, many cities ...
多轨PSInSAR监测华北平原地表垂直形变场
基准联 大空间尺度 地表垂直形变场
2014/12/19
针对PSInSAR技术监测大空间尺度地表垂直形变场的不足,提出通过基准转换与数据拼接、融合不同轨道多个独立片区(Frame)获取大空间尺度地表垂直形变场方法.由于不同轨道主影像选取的参考基准不一致、不同轨道垂直基线不同、不同片区相位解缠的参考PS不同等因素影响,使得PSInSAR获得的不同轨道地表垂直形变场的空间基准存在差异,提取的地表形变信息不具有可比性.利用两个相邻片区重叠区域的PS点集,根据...
CRInSAR与PSInSAR联合探测区域线性沉降研究
CRInSAR PSInSAR 沉降探测 矿区
2011/8/8
本文提出一种CRInSAR与PSInSAR联合解算算法,并将该算法应用于区域线性沉降探测中.该算法将CR点上计算得出的形变速率值及高程改正值作为研究区域PS基线网络的约束,进而通过间接观测平差法估计出PS网沉降速率和高程改正值的全局最优解.算法实现了人工角反射器雷达干涉测量技术(CRInSAR)与永久散射体雷达干涉测量技术 (PSInSAR) 的有效结合.实验利用河南地区PALSAR影像对联合解算...
常规差分干涉测量(DInSAR)受时间、空间失相干的严重制约和和大气延迟等相位误差的影响,难以实现对长期累积微小地壳形变场的有效探测.PSInSAR技术克服了常规DInSAR的局限性,能够高精度监测微小地壳形变.