نتایج جستجو برای: persistent scatterer interferometry

تعداد نتایج: 107899  

Journal: :Engineering Geology 2021

The aim of this paper is to demonstrate how the integration differential interferometric synthetic aperture radar (D-InSAR) and levelling improves monitoring ground deformation phenomena, thereby enabling their complete understanding. complementarity between D-InSAR illustrated through a case study construction road tunnel beneath Glòries Square, Barcelona; employed continuously monitor works, ...

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2021

Persistent scatterer (PS) interferometry (PSI) has the ability to achieve submeter-scale digital elevation model and millimeter-scale deformation. However, it is difficult maintain good performance under long baseline large phase gradient. In this article, we develop a network optimized ridge estimator for two-tier PSI. Such method can increase parameter estimation robustness spatial continuity...

2012
A. Schunert L. Schack U. Soergel

Persistent Scatterer Interferometry (PSI) is by now a mature technique for the estimation of surface deformation in urban areas. In contrast to the classical interferometry a stack of interferograms is used to minimize the influence of atmospheric disturbances and to select a set of temporarily stable radar targets, the so called Persistent Scatterers (PS). As a result the deformation time seri...

Journal: :Remote Sensing 2023

A reliable road network is a vital local asset, connecting communities and unlocking economic growth. Every year landslides cause serious damage and, in some cases, the full disruption of many networks, which can last from few days to even months. The identification monitoring with conventional methods on an extended complex be rather difficult process, as it requires significant amount time re...

Journal: :Geomatics, Natural Hazards and Risk 2022

Climate change has resulted in severe landslides Maskun, Iran. This study evaluates and monitors the displacement caused by landslide mass Bam using Interferometry Synthetic Aperture Radar (DInSAR) Persistent Scatterer (PSI) techniques, as well identifies relationships between climatic conditions displacement. Temperature precipitation data from 2007 to 2019 were combined with satellite images ...

دهقانی, مریم, صادقی, زهرا, ولدان زوج, محمدجواد,

تکنیک Persistent Scatterer Interferometry (PSI) برای اولین بار بر مبنای انتخاب پیکسل‌های پراکنش کننده‌ی دائمی با رفتار پراکنشی ثابت در زمان و با استفاده از مدل جابه‌جایی از پیش تعیین شده، جهت از بین بردن محدودیت‌های روش سنتی ارائه شد. این تکنیک در سال 2006 تحت عنوان StaMPS ، بهبود پیدا کرد به‌صورتی که بر خلاف تمام الگوریتم‌های PSIارائه شده تا قبل از آن، قابلیت انتخاب پراکنش کننده‌های دائمی را ب...

2005
A. Roth J. Hoffmann T. Esch

TerraSAR-X is a new German radar satellite that shall be launched in mid 2006. The expected lifetime is 5 years. It carries a high frequency X-band Synthetic Aperture Radar (SAR) sensor that can be operated in different modes and polarisation. The Spotlight-, Stripmapand ScanSAR-modes provide high resolution SAR images for detailed analysis as well as wide swath data whenever a larger coverage ...

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