Results 11 to 20 of about 4,285,560 (201)

An Improved Multi-Baseline Phase Unwrapping Method for GB-InSAR

Remote Sensing, 2022
Ground-based interferometric synthetic aperture radar (GB-InSAR) technology can be applied to generate a digital elevation model (DEM) with high spatial resolution and high accuracy.
Zihao Lin, Yan Duan, Yunkai Deng, Weiming Tian, Zheng Zhao   +4 more
doaj   +2 more sources

An Improved Phase Unwrapping Method Based on Hierarchical Networking and Constrained Adjustment

Remote Sensing, 2021
Accurate phase unwrapping (PU) is a precondition and key for using synthetic aperture radar interferometry (InSAR) technology to successfully invert topography and monitor surface deformations. However, most interferograms are seriously polluted by noise
Wenxiang Mao, Sai Wang, Bing Xu, Zhiwei Li, Yan Zhu   +4 more
doaj   +2 more sources

PIPNet: A Deep Convolutional Neural Network for Multibaseline InSAR Phase Unwrapping Based on Pure Integer Programming

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Multibaseline (MB) phase unwrapping (PU), as the core step in MB InSAR, breaks the limitation of phase continuity assumption. However, it still suffers from insufficient noise robustness and low unwrapping efficiency.
Hui Liu, Ke Zheng, Changwei Miao, Xuemei Liu, Xianlin Liu, Lin Li, Yongguang Zhang, Longhai Xiong   +7 more
doaj   +2 more sources

L2-norm deformation phase unwrapping in mining area driven by matrix pencil model

Meikuang Anquan
To address the limitations of traditional phase unwrapping (PU) approaches in differential interferometric synthetic aperture radar (DInSAR) technology which performs poorly in unwrapping low-coherence deformation interferograms in mining areas, an L2 ...
Lei DUAN, Xia HUA, Xiangkai ZENG, Liping CHEN, Haonan ZHANG, Rui SONG, Han XIAO   +6 more
doaj   +2 more sources

A New Phase Unwrapping Method for Disconnected Regions Inspired by Continental Drift Theory

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping (PU) is a crucial step in interferometric synthetic aperture radar, as it directly influences the accuracy of surface deformation monitoring and topographic mapping.
Pengfei Li, Zhiwei Li, Mi Jiang, Lei Guo, Minzheng Mu, Xin He, Jiachen Li, Yan Zhu, Yukun Yang   +8 more
doaj   +2 more sources

A Robust InSAR Phase Unwrapping Method via Phase Gradient Estimation Network

Remote Sensing, 2021
Phase unwrapping is a critical step in synthetic aperture radar interferometry (InSAR) data processing chains. In almost all phase unwrapping methods, estimating the phase gradient according to the phase continuity assumption (PGE-PCA) is an essential ...
Liming Pu, Xiaoling Zhang, Zenan Zhou, Liang Li, Liming Zhou, Jun Shi, Shunjun Wei   +6 more
semanticscholar   +2 more sources

A Coherence-Guided InSAR Phase Unwrapping Method With Cycle-Consistent Adversarial Networks

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping (PU) is a critical processing step for obtaining information on land surface deformation from interferometric synthetic aperture radar (InSAR) images.
Jingqin Mu, Yuzhu Wang, Sheng Zhan, Guoqing Yao, Kun Liu, Yueqin Zhu, Lizhe Wang   +6 more
doaj   +2 more sources

A Discontinuity-Guided Two-Dimensional Phase Unwrapping Method for SAR Interferograms

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping (PU) is one of the core procedures of interferometric synthetic aperture radar. The traditional PU methods estimate the absolute phase gradient based on the assumption that phase is spatially continuous. However, this assumption is often
Wenjie Zhong, Jia Li, Xin Li, Juanjuan Feng, Lei Guo, Zhiqiang Li, Junhui Wu, Lingshuai Kong   +7 more
doaj   +2 more sources

A Cluster-Analysis and Convex Hull-Based Fast Large-Scale Phase Unwrapping Method for Single- and Multibaseline SAR Interferograms

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
For synthetic aperture radar (SAR) interferometry (InSAR), phase unwrapping (PU) is an important and difficult step. Due to the high computational complexities of the classical and skilled PU methods, the size and number of interferograms to be processed
Yang Lan, Hanwen Yu, Mengdao Xing, Antonio Plaza   +3 more
doaj   +2 more sources

Efficient phase unwrapping [PDF]

, 2005
In the field of optical interferometry, two-dimensional projections of light interference patterns are often analysed in order to obtain measurements of interest.
AI-Sawaf, Firas
core   +9 more sources