Results 31 to 40 of about 4,285,560 (201)

A Novel Quality-Guided Two-Dimensional InSAR Phase Unwrapping Method via GAUNet

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Phase unwrapping (PU) has always been a critical and challenging step in interferometric synthetic aperture radar (InSAR) data processing. Inspired by existing research, i.e., the PGNet, we propose a novel quality-guided 2-D InSAR PU method via deep ...
Hai Wang, Jun Hu, Haiqiang Fu, Changcheng Wang, Zhenhai Wang   +4 more
doaj   +1 more source

Robust three-dimensional best-path phase-unwrapping algorithm that avoids singularity loops [PDF]

, 2009
In this paper we propose a novel hybrid three-dimensional phase-unwrapping algorithm, which we refer to here as the three-dimensional best-path avoiding singularity loops (3DBPASL) algorithm.
Burton, David, Arevalillo-Herráez, Miguel, Gdeisat, Munther, Abdul-Rahman, Hussein S., Qudeisat, Mohammed, Lilley, Francis, Sheltraw, Daniel, Lalor, Michael, Moore, Christopher   +8 more
core   +1 more source

Multibaseline Gradient Ambiguity Resolution To Support Minimum Cost Flow Phase Unwrapping [PDF]

, 2010
The TanDEM-X Mission has as primary objective to generate a high resolution global Digital Elevation Model. This paper proposes a new method for multibaseline Phase Unwrapping which is the critical point of this generation.
Marie Lachaise, Richard Bamler, Lachaise, Marie, Bamler, Richard, Fernando Rodriguez Gonzalez, Rodriguez Gonzalez, Fernando   +5 more
core   +1 more source

Discontinuity preserving phase unwrapping algorithm for simulated InSAR based on MRF model using line process

The Journal of Engineering, 2019
Phase unwrapping (PU) is one of the important procedures in measuring digital elevation model (DEM) from interferometric synthetic aperture radar (InSAR) images. It is known that the existence of phase discontinuity poses challenges to the traditional PU
Lifan Zhou, Yu Xia
doaj   +1 more source

Experimental Results of Three-Dimensional Modeling and Mapping with Airborne Ka-Band Fixed-Baseline InSAR in Typical Topographies of China

Remote Sensing, 2022
Interferometric synthetic aperture radar (InSAR) has become a key technology for producing high-precision digital surface models (DSMs) and digital orthophoto maps (DOMs) in full time and all weathers. Airborne millimeter-wave InSAR, with large-scale and
Jian Gao, Zhongchang Sun, Huadong Guo, Lideng Wei, Yongjie Li, Qiang Xing   +5 more
doaj   +1 more source

An Algorithm Measuring Urban Building Heights by Combining the PS-InSAR Technique and Two-Stage Programming Approach Framework

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Urban building heights offer critical information in studying urbanization. An approach with adequate accuracy is of significant interest. Spaceborne interferometric synthetic aperture radar (InSAR) techniques and multibaseline (MB) InSAR observations ...
Bao Zhu, Yong Wang, Hanwen Yu
doaj   +1 more source

Phase unwrapping by blocks

, 2022
S.285-290A method of 2-dimensional phase-unwrapping by blocks is presented in this paper. This method combines the advantages of both conventional phase-unwrapping algorithm and cellular-automata unwrapping algorithm.
Pfeifer, Tilo, Wang, Boxiong, Mischo, Horst, Shi, Yuqing   +3 more
core   +1 more source

Refined Two-Stage Programming-Based Multi-Baseline Phase Unwrapping Approach Using Local Plane Model

Remote Sensing, 2019
The problem of phase unwrapping (PU) in synthetic aperture radar (SAR) interferometry (InSAR) is caused by the measured range differences being ambiguous with the wavelength. Therefore, multi-baseline (MB) is a key processing step of MB InSAR.
Yang Lan, Hanwen Yu, Mengdao Xing
doaj   +1 more source

Using Range Split-Spectrum Interferometry to Reduce Phase Unwrapping Errors for InSAR-Derived DEM in Large Gradient Region

Remote Sensing, 2022
The use of the conventional interferometric synthetic aperture radar (InSAR) to generate digital elevation models (DEMs) always encounters phase unwrapping (PU) errors in areas with a sizeable topographic gradient.
Wenfei Mao, Guoxiang Liu, Xiaowen Wang, Yakun Xie, Xiaoxing He, Bo Zhang, Wei Xiang, Shuaiying Wu, Rui Zhang, Yin Fu, Saied Pirasteh   +10 more
doaj   +1 more source

Refined Two-Stage Programming Approach of Phase Unwrapping for Multi-Baseline SAR Interferograms Using the Unscented Kalman Filter

Remote Sensing, 2019
Phase unwrapping (PU) represents a key step in the reconstruction of digital elevation models (DEMs) and the monitoring of surface deformation from interferometric synthetic aperture radar (InSAR) data.
YanDong Gao, ShuBi Zhang, Tao Li, QianFu Chen, Xiang Zhang, ShiJin Li   +5 more
doaj   +1 more source