Results 51 to 60 of about 211 (127)

Odor‐Active Compounds in Flexible Polyurethane Materials

Indoor Air, Volume 2024, Issue 1, 2024.
Flexible polyurethane (PU) materials find extensive use in upholstery, mattresses, and automobiles, yet the molecular background of their odor is still inadequately understood. To address this gap, we aimed at identifying major odorants in fifteen samples representing eight common types of flexible PU materials.
Charlotte Minig, Klaas Reglitz, Martin Steinhaus, Faming Wang   +3 more
wiley   +1 more source

Fourier Decomposition-Based Phase Processing Technique: A Novel Approach for 1-D Phase Unwrapping

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The performance of coherence analysis system (CAS) is critically dependent on phase accuracy. Most advanced phase unwrapping (PU) algorithms are designed for 2-D problem, but data from various interferometric systems are typically acquired as 1-D time ...
Chenghao Lu, Donglin Li, Hengyi Jia, Taoli Yang   +3 more
doaj   +1 more source

DMP-PUNet: A novel network for two-dimensional InSAR phase unwrapping under severe noise and complex fringes conditions

International Journal of Applied Earth Observations and Geoinformation
In the processing of Interferometric synthetic aperture radar (InSAR) data, two-dimensional (2-D) phase unwrapping (PU) is crucial for ensuring the quality of InSAR data inversion.
Yu Chen, Shuai Wang, Yandong Gao, Yanjian Sun, Jinqi Zhao, Kun Tan, Peijun Du   +6 more
doaj   +1 more source

Two-Dimensional Phase Unwrapping for Topography Reconstruction: A Refined Two-Stage Programming Approach

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The interferometric synthetic aperture radar (InSAR) is able to reconstruct the Earth's surface topography with a meter-level accuracy when two-dimensional phase unwrapping (PU) is properly implemented.
Yan Yan, Hanwen Yu, Taoli Yang
doaj   +1 more source

MCJ-UNet: A Dual/Multi-channel-joint Phase Unwrapping Network for Interferometric SAR

Leida xuebao
Interferometric Synthetic Aperture Radar (InSAR) enables the efficient retrieval of surface elevation and has extensive applications in terrain mapping.
Zegang DING, Tao SUN, Zhen WANG, Jian ZHAO, Yipeng SHI, Haolong CHEN, Zhizhou CHEN, Yan WANG, Tao ZENG   +8 more
doaj   +1 more source

SPAN-PU: Spatially Adaptive $\ell _{p}$-Norm Phase Unwrapping via Bilevel Learning

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping (PU) is a critical step in interferometric synthetic aperture radar (InSAR) processing, directly affecting the accuracy of digital elevation models and deformation measurements.
Xin Ye, Hanwen Yu, Taoli Yang, Yan Yan, Lifan Zhou   +4 more
doaj   +1 more source

FPUNet: A Fourier-Enhanced U-Net for Robust 2-D Phase Unwrapping of Noisy InSAR Interferograms

Remote Sensing
Two-dimensional phase unwrapping (PU) of interferometric synthetic aperture radar (InSAR) data remains difficult when steep deformation gradients and multi-source disturbances violate the Itoh condition.
Yuxiao He, Yuming Wu, Xing Gao
doaj   +1 more source

Robust Two-Dimensional InSAR Phase Unwrapping via FPA and GAU Dual Attention in ResDANet

Remote Sensing
Two-dimensional phase unwrapping (2-D PU) is vital for reconstructing Earth’s surface topography and displacement from interferometric synthetic aperture radar (InSAR) data.
Xiaomao Chen, Shanshan Zhang, Xiaofeng Qin, Jinfeng Lin   +3 more
doaj   +1 more source

An Improved Closed-Form Multi-Baseline Phase Unwrapping Algorithm

Remote Sensing
Multi-baseline phase unwrapping (PU) is an extension of single-baseline PU. Its accuracy directly affects the reliability of results in engineering tasks, such as InSAR topographic mapping and geological hazard monitoring, in complex scenarios. Meanwhile,
Zhen Wang, Xuemao Li, Chao Xing, Zhibin Wang, Peng Liu, Zhenfang Li   +5 more
doaj   +1 more source

Quantum Optimization for Phase Unwrapping in SAR Interferometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping is the reconstruction of a phase given its values mod 2$\pi$. Phase unwrapping is an important image processing technique used in synthetic aperture radar interferometry, in the context of height estimation and ground deformation.
Kay Glatting, Jan Meyer, Sigurd Huber, Gerhard Krieger   +3 more
doaj   +1 more source