Results 11 to 20 of about 1,986,502 (324)

Bayesian Estimation of Land Deformation Combining Persistent and Distributed Scatterers

open access: yesRemote Sensing, 2022
Persistent Scatterer Interferometry (PSI) has been widely used for monitoring land deformation in urban areas with millimeter accuracy. In natural terrain, combining persistent scatterers (PSs) and distributed scatterers (DSs) to jointly estimate ...
Gen Li   +6 more
doaj   +3 more sources

Multiresolution Detection of Persistent Scatterers: A Performance Comparison Between Multilook GLRT and CAESAR

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2021
Persistent scatterers (PS) interferometry tools are extensively used for the monitoring of slow, long-term ground deformation. High spatial resolution is typically required in urban areas to cope with the variability of the signal, whereas in rural ...
S. Verde   +3 more
semanticscholar   +3 more sources

Landslides detection through optimized hot spot analysis on persistent scatterers and distributed scatterers

open access: yesISPRS Journal of Photogrammetry and Remote Sensing, 2019
Long-term InSAR techniques, such as Persistent Scatterer Interferometry and Distributed Scatterer Interferometry, are effective approaches able to detect slow-moving landslides with millimeter precision.
P. Lu, S. Bai, V. Tofani, N. Casagli
semanticscholar   +3 more sources

New Approaches for Robust and Efficient Detection of Persistent Scatterers in SAR Tomography

open access: yesRemote Sensing, 2019
Persistent scatterer interferometry (PSI) has the ability to acquire submeter-scale digital elevation model (DEM) and millimeter-scale deformation. A limitation to the application of PSI is that only single persistent scatterers (SPSs) are detected, and ...
Xiaoxiang Zhu   +5 more
doaj   +2 more sources

Linking Persistent Scatterers to the Built Environment Using Ray Tracing on Urban Models

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2019
Persistent scatterers (PSs) are coherent measurement points obtained from time series of satellite radar images, which are used to detect and estimate millimeter-scale displacements of the terrain or man-made structures.
Mengshi Yang   +5 more
semanticscholar   +3 more sources

Novel Amplitude-Based Approach for Reducing Sidelobes in Persistent Scatterer Interferometry Processing Using Spatially Variant Apodization [PDF]

open access: yesSensors
This study introduces an amplitude-based method that applies Spatially Variant Apodization (SVA) to reduce sidelobes in Synthetic Aperture Radar (SAR) data.
Natascha Liedel   +4 more
doaj   +2 more sources

A GIS-Based Procedure for Landslide Intensity Evaluation and Specific risk Analysis Supported by Persistent Scatterers Interferometry (PSI)

open access: yesRemote Sensing, 2017
The evaluation of landslide specific risk, defined as the expected degree of loss due to landslides, requires the parameterization and the combination of a number of socio-economic and geological factors, which often needs the interaction of different ...
Silvia Bianchini   +2 more
doaj   +2 more sources

Vector-based approach for combining ascending and descending persistent scatterers interferometric point measurements

open access: yesGeocarto International, 2018
The combination of ascending and descending persistent scatterers interferometric (PSI) data by means of resampling and/or spatial interpolation, separately for each synthetic aperture radar geometry, is a commonly followed procedure, limited though by ...
M. Foumelis
semanticscholar   +3 more sources

Efficient Ground Surface Displacement Monitoring Using Sentinel-1 Data: Integrating Distributed Scatterers (DS) Identified Using Two-Sample t-Test with Persistent Scatterers (PS)

open access: yesRemote Sensing, 2018
Combining persistent scatterers (PS) and distributed scatterers (DS) is important for effective displacement monitoring using time-series of SAR data.
R. Shamshiri   +3 more
semanticscholar   +3 more sources

Monitoring the Response of Roads and Railways to Seasonal Soil Movement with Persistent Scatterers Interferometry over Six UK Sites

open access: yesRemote Sensing, 2017
Road and rail networks provide critical support for society, yet they can be degraded by seasonal soil movements. Currently, few transport network operators monitor small-scale soil movement, but understanding the conditions contributing to ...
Matthew R. North   +3 more
semanticscholar   +3 more sources

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