Results 51 to 60 of about 2,458,810 (174)
A reweighted matrix completion algorithm for sparse inverse synthetic aperture radar imaging
IET Radar, Sonar & Navigation, 2023 Sparse inverse synthetic aperture radar (ISAR) imaging can be generally achieved by compressed sensing (CS) methods because sparse sampling disables the approach of conventional range Doppler. However, the CS‐based methods have to convert the matrix into
Mingjiu Lv +5 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri +3 more
wiley +1 more source
Adaptive Prototype‐Based Few‐Shot Segmentation for Debris Flow Early Warning
Journal of Flood Risk Management, Volume 19, Issue 4, December 2026.From single‐parameter monitoring to a cross‐modal few‐shot visual paradigm for debris flow early warning. Conventional rainfall‐gauge and mud‐level monitoring is data‐sparse, delayed in response, and spatially limited. The proposed framework instead fuses a support set, a query image, and a textual target category through ResNet‐50 and CLIP encoders ...
Mingzhi Zhang +7 more
wiley +1 more source
Evolution of Summit Magma Pressure During the 2018 Caldera Collapse at Kīlauea Volcano
Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.Abstract We utilized geodetic data from the 16 May to 4 August 2018 caldera collapse sequence to refine the geometries and pressure evolution of two summit reservoirs at Kīlauea volcano: the shallower Halema‘uma‘u (HMM) and deeper South Caldera (SC) reservoirs.
Eric Berg +4 more
wiley +1 more source
Calibration Issue in SMART Synthetic Aperture Radar Based on Scan-On-Receive [PDF]
, 2009 A new spaceborne Synthetic Aperture Radar (SAR) system based on SCan-On-REceive (SCORE) algorithm has been recently proposed in order to overcome the trade-off between spatial resolution and swath wide of current SAR systems. The compound architecture of
Bordoni, Federica +2 more
core
WAH‐i: Optimising microphone array geometry for customised localisation accuracy
Methods in Ecology and Evolution, Volume 17, Issue 11, Page 3199-3219, November 2026.Abstract Accurate spatial localisation of free‐flying echolocating bats is foundational for resolving fine‐scale flight and echolocation behaviour, prey interception and spatial decision‐making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are typically ...
Ravi Umadi
wiley +1 more source
Nonlinear Release of Subinertial Diurnal Internal Tides Forms Spiral Internal Solitary Waves
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Earth's rotation imposes a dynamical barrier on the free propagation of internal tides at high latitudes, raising questions about the fate of tidal energy poleward of the critical latitude. Satellite observations reveal spiral internal solitary waves (ISWs) along the continental slope of the South Orkney Plateau.
Zenghao Jiang +5 more
wiley +1 more source
BridgeSAR: Measuring Bridge‐Water Clearance From Space Using SAR Multipath Signatures
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Bridge‐water clearance controls safe vessel passage and reflects local water‐level changes, but direct measurements are unavailable at many bridges. We present BridgeSAR, a geometry‐guided method that estimates clearance from multipath scattering stripes in synthetic aperture radar (SAR) amplitude images.
Jinwoo Kim, Zhong Lu
wiley +1 more source
Assessing Co‐Located NISAR and Sentinel‐1 Observations for Atmospheric Characterization
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.Abstract Tropospheric delay remains one of the largest sources of uncertainty in repeat‐pass Interferometric Synthetic Aperture Radar (InSAR) measurements, while accurate three‐dimensional deformation retrieval continues to be limited by the geometry of current spaceborne SAR systems.
Shadi Oveisgharan +3 more
wiley +1 more source
Advances in Synthetic Aperture Radar from a Wavenumber Perspective [PDF]
, 2017 This dissertation examines the wavenumber domain of Synthetic Aperture Radar (SAR) images. This domain is the inverse Fourier transform domain of a SAR image.
Dower, William
core