Results 91 to 100 of about 874 (197)

Characterizing Aquifer Properties and Groundwater Storage at North China Plain Using Geodetic and Hydrological Measurements

open access: yesWater Resources Research, Volume 61, Issue 2, February 2025.
Abstract Climatic and anthropogenic changes are reshaping global water resources, with the North China Plain (NCP) experiencing significant surface subsidence due to severe groundwater overexploitation over the past half‐century. In this study, we integrate data from Interferometric Synthetic Aperture Radar, Global Navigation Satellite System, and ...
Mingjia Li   +6 more
wiley   +1 more source

A simple robust two-scale phase component inversion scheme for persistent scatterer interferometry (dual-scale PSI)

open access: yesCanadian Journal of Remote Sensing, 2009
We have developed a new persistent scatterer interferometry (dual-scale PSI) method with a simpler and more robust phase component inversion than that of the iterative linear modeling used in many commercial and scientific PSI solutions. The new method can measure displacements down to a millimetre, also for smaller interferometric stacks (~20 scenes ...
Bernhard T Rabus, Parwant S Ghuman
openaire   +1 more source

Multi Beam Joined Estimation For Persistent Scatterer Interferometry

open access: yes, 2010
The persistent scatterer interferometry (PSI) is a powerful technique to monitor the line of sight (LOS) deformation with Millimeter accuracy in urban areas. Nowadays, this technique is well established for the sensors ERS and Envisat/ASAR. Nevertheless,
Nico Adam   +7 more
core   +1 more source

SAR Tomography as an Add-On to PSI: Detection of Coherent Scatterers in the Presence of Phase Instabilities

open access: yesRemote Sensing, 2018
The estimation of deformation parameters using persistent scatterer interferometry (PSI) is limited to single dominant coherent scatterers. As such, it rejects layovers wherein multiple scatterers are interfering in the same range-azimuth resolution cell.
Muhammad Adnan Siddique   +3 more
doaj   +1 more source

Super-Resolution Persistent Scatterer Interferometry (SR-PSI) - PS Densification Through Capon Based SAR Reprocessing

open access: yes, 2020
The Capon algorithm can be applied to reprocess SAR images, resulting in super-resolution super-resolution reconstructed scenes with lower sidelobe levels. Base on this idea, we have proposed a processing chain of Super-Resolution Persistent Scatterer Interferometry (SR-PSI), to increase PS density.
Hao Zhang, Paco Lopez-Dekker
openaire   +2 more sources

Surface Deformation Monitoring in Coal Mine Area Based on PSI

open access: yesIEEE Access, 2019
It is difficult to get robust deformation results using conventional differential interferometric synthetic aperture radar (D-InSAR) method, due to the limitation of the phase measurement error, baseline error, and atmospheric delay in synthetic aperture
Changjun Huang, Hongmei Xia, Jiyuan Hu
doaj   +1 more source

Improving Persistent Scatterers Interferometry (PSI) analysis in highly vegetal / agricultural areas for long term CO2 storage monitoring

open access: yesEnergy Procedia, 2014
Persistent scatterers synthetic aperture radar interferometry (PSI) analysis is viewed as a promising monitoring technique for multiyear detection of ground surface displacements during long term CO2 injection into deep aquifers (of the order of 25 to 50 years).
Rohmer, Jeremy   +5 more
openaire   +2 more sources

Visual Analytics for Persistent Scatterer Interferometry: First Steps and Future Challenges

open access: yes, 2016
In this paper, we introduce persistent scatterer interferometry (PSI) as a new and promising application domain for Visual Analytics (VA). PSI studies changes of the Earth's topography by analyzing large time-varying point clouds that easily comprise ...
Köthur, Patrick   +3 more
core   +1 more source

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