STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE
In this paper, sequence ALOS PALSAR data and airborne SAR data of L-band from June 5, 2008 to September 8, 2015 are used. Based on the research of SAR data preprocessing and core algorithms, such as geocode, registration, filtering, unwrapping and baseline estimation, the improved Goldstein filterin...
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doaj-07cc8d8b384e473e952013107df1cada2020-11-24T21:03:59ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342018-04-01XLII-32023202710.5194/isprs-archives-XLII-3-2023-2018STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLED. Xue0D. Xue1D. Xue2X. Yu3X. Yu4S. Jia5S. Jia6F. Chen7X. Li8College of Earth Sciences of Chengdu University of Technology, Chengdu Sichuan, ChinaResearch Institute of Forest Resources Information Techniques, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Geoscience Spatial Information Technology of Ministry of Land and Resources, ChinaCollege of Earth Sciences of Chengdu University of Technology, Chengdu Sichuan, ChinaKey Laboratory of Geoscience Spatial Information Technology of Ministry of Land and Resources, ChinaCollege of Earth Sciences of Chengdu University of Technology, Chengdu Sichuan, ChinaKey Laboratory of Geoscience Spatial Information Technology of Ministry of Land and Resources, ChinaCollege of Earth Sciences of Chengdu University of Technology, Chengdu Sichuan, ChinaCollege of Earth Sciences of Chengdu University of Technology, Chengdu Sichuan, ChinaIn this paper, sequence ALOS PALSAR data and airborne SAR data of L-band from June 5, 2008 to September 8, 2015 are used. Based on the research of SAR data preprocessing and core algorithms, such as geocode, registration, filtering, unwrapping and baseline estimation, the improved Goldstein filtering algorithm and the branch-cut path tracking algorithm are used to unwrap the phase. The DEM and surface deformation information of the experimental area were extracted. Combining SAR-specific geometry and differential interferometry, on the basis of composite analysis of multi-source images, a method of detecting landslide disaster combining coherence of SAR image is developed, which makes up for the deficiency of single SAR and optical remote sensing acquisition ability. Especially in bad weather and abnormal climate areas, the speed of disaster emergency and the accuracy of extraction are improved. It is found that the deformation in this area is greatly affected by faults, and there is a tendency of uplift in the southeast plain and western mountainous area, while in the southwest part of the mountain area there is a tendency to sink. This research result provides a basis for decision-making for local disaster prevention and control.https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-3/2023/2018/isprs-archives-XLII-3-2023-2018.pdf |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
D. Xue D. Xue D. Xue X. Yu X. Yu S. Jia S. Jia F. Chen X. Li |
spellingShingle |
D. Xue D. Xue D. Xue X. Yu X. Yu S. Jia S. Jia F. Chen X. Li STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
author_facet |
D. Xue D. Xue D. Xue X. Yu X. Yu S. Jia S. Jia F. Chen X. Li |
author_sort |
D. Xue |
title |
STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE |
title_short |
STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE |
title_full |
STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE |
title_fullStr |
STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE |
title_full_unstemmed |
STUDY ON LANDSLIDE DISASTER EXTRACTION METHOD BASED ON SPACEBORNE SAR REMOTE SENSING IMAGES – TAKE ALOS PALSAR FOR AN EXAMPLE |
title_sort |
study on landslide disaster extraction method based on spaceborne sar remote sensing images – take alos palsar for an example |
publisher |
Copernicus Publications |
series |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
issn |
1682-1750 2194-9034 |
publishDate |
2018-04-01 |
description |
In this paper, sequence ALOS PALSAR data and airborne SAR data of L-band from June 5, 2008 to September 8, 2015 are used. Based on the research of SAR data preprocessing and core algorithms, such as geocode, registration, filtering, unwrapping and baseline estimation, the improved Goldstein filtering algorithm and the branch-cut path tracking algorithm are used to unwrap the phase. The DEM and surface deformation information of the experimental area were extracted. Combining SAR-specific geometry and differential interferometry, on the basis of composite analysis of multi-source images, a method of detecting landslide disaster combining coherence of SAR image is developed, which makes up for the deficiency of single SAR and optical remote sensing acquisition ability. Especially in bad weather and abnormal climate areas, the speed of disaster emergency and the accuracy of extraction are improved. It is found that the deformation in this area is greatly affected by faults, and there is a tendency of uplift in the southeast plain and western mountainous area, while in the southwest part of the mountain area there is a tendency to sink. This research result provides a basis for decision-making for local disaster prevention and control. |
url |
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-3/2023/2018/isprs-archives-XLII-3-2023-2018.pdf |
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