Results 21 to 30 of about 151,883 (193)

Mining Subsidence Monitoring With Modified Time-Series SAR Interferometry Method Based on the Multi-Level Processing Strategy

open access: yesIEEE Access, 2021
The supply of coal is related to the stability of social development in China. Coal mining faces are generally located under farmland and wasteland to avoid destroying the livelihood and property of residents, which seriously affects the selection of ...
Qian He   +3 more
doaj   +1 more source

Monitoring Potential Geological Hazards with Different InSAR Algorithms: The Case of Western Sichuan

open access: yesRemote Sensing, 2022
In recent years, the number of geological disasters in Sichuan Province has significantly increased due to the influence of earthquakes and extreme climate, as well as the disturbance to the geological environment by human activities.
Zezhong Zheng   +5 more
doaj   +1 more source

Monitoring Surface Subsidence Using Distributed Scatterer InSAR with an Improved Statistically Homogeneous Pixel Selection Method in Coalfield Fire Zones

open access: yesRemote Sensing, 2023
Statistically homogeneous pixel (SHP) selection is an important process in the distributed scatterer interferometric synthetic aperture radar (DS-InSAR) approach. However, prevalent methods struggle to appropriately balance the efficiency and accuracy of
Zeming Tian   +3 more
doaj   +1 more source

DS-InSAR Based Long-Term Deformation Pattern Analysis in the Mining Region With an Improved Phase Optimization Algorithm [PDF]

open access: yesFrontiers in Environmental Science, 2022
The environment management and land utilization of the abandoned mining region is critically dependent on precise monitoring and comprehensive understanding of mining subsidence. In order to overcome the shortcomings of the traditional distributed target phase optimization method in the space continuity constraints of adjacent pixels, an improved phase
Yuling Du   +9 more
openaire   +2 more sources

A SqueeSAR Spatially Adaptive Filtering Algorithm Based on Hadoop Distributed Cluster Environment

open access: yesApplied Sciences, 2023
Multi-temporal interferometric synthetic aperture radar (MT-InSAR) techniques analyze a study area using a set of SAR image data composed of time series, reaching millimeter surface subsidence accuracy.
Yongning Li   +5 more
doaj   +1 more source

Using Persistent Scatterer Interferometry for Post-Earthquake Landslide Susceptibility Mapping in Jiuzhaigou

open access: yesApplied Sciences, 2022
Earthquakes cause a huge number of landslides and alter the regional landslide risk distribution. As a result, after a significant earthquake, the landslide susceptibility maps (LSMs) must be updated.
Haoran Fang   +7 more
doaj   +1 more source

Integration of InSAR time series analysis and water vapour correction for mapping postseismic deformation after the 2003 Bam (Iran) Earthquake [PDF]

open access: yes, 2009
Atmospheric water-vapor effects represent a major limitation of interferometric synthetic aperture radar (InSAR) techniques, including InSAR time-series (TS) approaches (e.g., persistent or permanent scatterers and small-baseline subset).
Fielding, E., Li, Z., Cross, P.
core   +1 more source

A new sequential homogeneous pixel selection algorithm for distributed scatterer InSAR

open access: yesGIScience & Remote Sensing, 2023
Distributed scatterer interferometric synthetic aperture radar (DS InSAR) technology has been widely used in various fields. Homogeneous pixel selection is a crucial step in the use of DS InSAR, directly affecting the estimation precision and reliability
Bingqian Chen   +7 more
doaj   +1 more source

NL-MMSE: A Hybrid Phase Optimization Method in Multimaster Interferogram Stack for DS-InSAR Applications

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
When the distributed scatterer interferometric synthetic aperture radar (DS-InSAR) technology is used for surface deformation monitoring, the accuracy strongly depends on the quality of phase optimization.
Youfeng Liu   +4 more
doaj   +1 more source

Identification and Analysis of Unstable Slope and Seasonal Frozen Soil Area along the Litang Section of the Sichuan–Tibet Railway, China

open access: yesRemote Sensing, 2023
The Sichuan–Tibet Railway (STR) is currently under construction and serves as an important transportation route in western China. Identifying potential geohazards along the route is important for project construction. However, research on the frozen soil
Yuanjian Wang   +5 more
doaj   +1 more source

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