Results 21 to 30 of about 5,041 (172)

Fast InSAR Phase Unwrapping Method for Complex Mountainous Areas With High Noise and Large Gradient Changes

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Interferometry synthetic aperture radar (InSAR) is essential for monitoring surface deformation and geological hazards. InSAR applications in complex mountainous regions are challenging due to high noise levels and large phase gradient variations, which ...
Dingyi Zhou, Zhifang Zhao
doaj   +1 more source

Deep Learning Training Data for Phase Unwrapping of SAR Interferograms [PDF]

open access: yesGeo Data
Phase unwrapping is an essential process in synthetic aperture radar interferometry that restores phase signals constrained within the range of (-π, π) to their true phase values.
Won-Kyung Baek, Hyung-Sup Jung
doaj   +1 more source

Effective unwrapping of complicated phases by exploiting multiple interferograms: a case study of the 2016 Kumamoto earthquake

open access: yesEarth, Planets and Space, 2022
Synthetic aperture radar (SAR) interferometry can measure ground surface deformation with high accuracy and spatial resolution, in the form of phase change in an interferogram.
Yu Morishita
doaj   +1 more source

Time series phase unwrapping algorithm using LP-norm optimization compressive sensing

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
Time series phase unwrapping is an essential step in the time series interferometric synthetic aperture radar technique for deformation monitoring. However, traditional unwrapping algorithms are prone to unwrapping errors in the case of intense noise and
Shijin Li   +7 more
doaj   +1 more source

A Parallel InSAR Phase Unwrapping Method Based on Separated Continuous Regions

open access: yesRemote Sensing, 2023
Phase unwrapping is an imperative step in interferometry processing that has a significant influence on the quality of subsequent products. Many existing phase unwrapping algorithms have been designed to solve for the unwrapped phase under the assumption
Jian Gao   +4 more
doaj   +1 more source

Airborne InSAR Interferometric Phase Analysis, Unwrapping Method, and Fast Implementation in Low Coherence Areas

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Due to synthetic aperture radar (SAR) imaging geometry and scattering characteristics, there are some low coherence areas in interferometric SAR (InSAR) data, such as shadow and water, where the interferometric phase is discontinuous.
Fangfang Li   +3 more
doaj   +1 more source

Using Phase Unwrapping Methods to Apply D-InSAR in Mining Areas

open access: yesCanadian Journal of Remote Sensing, 2019
Phase unwrapping is one of the key processing steps of D-InSAR (Differential Interferometric Synthetic Aperture Radar), and its accuracy has a great impact on the accuracy of interferometric deformation results.
Bei Zhang, Jiuyi Li, Hongrui Ren
doaj   +1 more source

Rotary 3D Printing With Integrated Electroplating

open access: yesAdvanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria   +5 more
wiley   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday   +3 more
wiley   +1 more source

An Anti-Noise-Designed Residual Phase Unwrapping Neural Network for Digital Speckle Pattern Interferometry

open access: yesOptics
DSPI (Digital Speckle Pattern Interferometry) is a non-destructive optical measurement technique that obtains phase information of an object through phase unwrapping.
Biao Wang   +4 more
doaj   +1 more source

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