نتایج جستجو برای: insar

تعداد نتایج: 2837  

2014
Yang Wang Haifeng Huang Zhen Dong Manqing Wu

Abstract—In this paper, we propose a modified version of the Random Sample Consensus (RANSAC) method for Interferometric Synthetic Aperture Radar (InSAR) image registration based on the ScaleInvariant Feature Transform (SIFT). Because of speckle, the “maximization of inliers” criterion in the original RANSAC cannot obtain the optimal results. Since in InSAR image registration, the registration ...

2008
David Myer David Sandwell Benjamin Brooks James Foster Masanobu Shimada

Article history: We report on InSAR and G Received 18 January 2008 Accepted 9 June 2008 Available online 19 June 2008

Journal: :Remote Sensing 2022

In recent years, the number of geological disasters in Sichuan Province has significantly increased due to influence earthquakes and extreme climate, as well disturbance environment by human activities. Thus, disaster monitoring is particularly important, which can provide some scientific basis for prevention reduction. this paper, interferometric synthetic aperture radar (InSAR) technology was...

Journal: :Remote Sensing 2023

It is difficult for single time-series Interferometric Synthetic Aperture Radar (InSAR) processing to guarantee the accuracy and efficiency of continuous track monitoring in regions differential subsidence. This paper proposes a new method, integrating Persistent Scatterer InSAR (PS-InSAR) with high precision Small Baseline Subset (SBAS-InSAR) land subsidence rates. Based on PS-InSAR processing...

2003
Howard A. Zebker Steven M. Gorelick Mark D. Zoback

This dissertation investigates the application of interferometric synthetic aperture radar (InSAR) to the measurement and interpretation of surface displacements over developed aquifer systems. Land subsidence over developed groundwater systems has been observed in a wide variety of hydrogeologic settings worldwide. The phenomenon can be explained with elastic and inelastic deformation of water...

Journal: :Remote Sensing 2017
Jingwen Zhao Jicang Wu Xiaoli Ding Mingzhou Wang

Monitoring, assessing, and understanding the structural health of large infrastructures, such as buildings, bridges, dams, tunnels, and highways, is important for urban development and management, as the gradual deterioration of such structures may result in catastrophic structural failure leading to high personal and economic losses. With a higher spatial resolution and a shorter revisit perio...

2007
Eric Rignot Keith Echelmeyer William Krabill

Digital elevation models of glaciated terrain produced by the NASA/Jet Propulsion Laboratory (JPL) airborne interferometric synthetic-aperture radar (InSAR) instrument in Greenland and Alaska at the C(5.6 cm wavelength) and L-band (24-cm) frequencies were compared with surface elevation measured from airborne laser altimetry to estimate the phase center of the interferometric depth, or penetrat...

2011
Lei Zhang Zhong Lu Xiaoli Ding Hyung-sup Jung Guangcai Feng Chang-Wook Lee

a r t i c l e i n f o Multi-temporal interferometric synthetic aperture radar (InSAR) is an effective tool to detect long-term seismotectonic motions by reducing the atmospheric artifacts, thereby providing more precise deformation signal. The commonly used approaches such as persistent scatterer InSAR (PSInSAR) and small baseline subset (SBAS) algorithms need to resolve the phase ambiguities i...

Journal: :Remote Sensing 2022

Intensive and large-scale underground coal mining has caused geological disasters such as local ground subsidence, cracks collapse in the Datong coalfield, China, inducing serious threats to residents. Interferometric synthetic aperture radar (InSAR) capability of surface deformation detection with high precision vast mountainous areas. DInSAR, stacking-InSAR SBAS-InSAR are commonly used InSAR-...

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