Results 61 to 70 of about 20,480 (209)

A generalised Measurement Equation and van Cittert-Zernike theorem for wide-field radio astronomical interferometry

, 2008
We derive a generalised van Cittert-Zernike (vC-Z) theorem for radio astronomy that is valid for partially polarized sources over an arbitrarily wide field-of-view (FoV).
Carozzi, T. D., Woan, G.
core   +2 more sources

Offshore Metallic Platforms Observation Using Dual-Polarimetric TS-X/TD-X Satellite Imagery: A Case Study in the Gulf of Mexico [PDF]

, 2017
Satellite-based synthetic aperture radar (SAR) has been proven to be an effective tool for ship monitoring. Offshore platforms monitoring is a key topic for both safety and security of the maritime domain.
Marino, Armando, Nunziata, Ferdinando, Velotto, Domenico   +2 more
core   +3 more sources

Quantum-enhanced imaging for characterizing anisotropic material

npj Quantum Information
Polarimetric imaging, a technique that captures the invisible polarization-related properties of given materials, has broad applications from fundamental physics to advanced fields such as target recognition, stress detection, biomedical diagnosis and ...
Meng-Yu Xie, Su-Jian Niu, Zhao-Qi-Zhi Han, Yin-Hai Li, Ren-Hui Chen, Xiao-Hua Wang, Ming-Yuan Gao, Li Chen, Yue-Wei Song, Zhi-Yuan Zhou, Bao-Sen Shi   +10 more
doaj   +1 more source

Dual‐Polarization‐Sensitive Organic Photodetectors for Real‐Time Polarimetric Imaging

Laser &Photonics Reviews, EarlyView.
Bias‐switchable organic photodetectors with orthogonally stacked uniaxially oriented polymer layers enable dual‐polarization detection and real‐time polarimetric imaging. This scalable, template‐free strategy achieves a high dichroic ratio (>11), rapid response (>500 Hz), and detectivity up to 1013 Jones.
Jiayin Han, Wanzhu Cai, Yingying Xue, Qi Zhu, Mingsheng Gao, Yu Tang, Zhuangmiao Wang, Furong Zhu   +7 more
wiley   +1 more source

Near-infrared Linear Polarization of Ultracool Dwarfs

, 2011
We report on near-infrared J- and H-band linear polarimetric photometry of eight ultracool dwarfs (two late-M, five L0-L7.5, and one T2.5) with known evidence for photometric variability due to dust clouds, anomalous red infrared colors, or low-gravity ...
A. Manchado, Allers, Allers, Alves, Ardila, Artigau, Artigau, B. Goldman, Basri, Bernat, Blake, Burgasser, Burrows, Chabrier, Cieza, Cruz, Fazio, Gelino, Gizis, Golimowski, Gorlova, Hashimoto, Herczeg, J. A. Acosta-Pulido, J. A. Caballero, Jayawardhana, Jayawardhana, K. Peña Ramírez, Kandori, Kirkpatrick, Kirkpatrick, Knapp, Kraus, Kusakabe, Leggett, Luhman, Luhman, M. R. Zapatero Osorio, Marley, Martín, McGovern, McLean, McLean, Mohanty, Mohanty, Morales-Calderón, Muzerolle, Patten, R. Rebolo, Reiners, Reiners, Rieke, Schmidt, Scholz, Sengupta, Sengupta, Sengupta, Simmons, Skrutskie, Stauffer, V. J. S. Béjar, Wright, Wright, Zapatero Osorio, Zapatero Osorio, Zapatero Osorio   +65 more
core   +1 more source

Sparsity Based Full Rank Polarimetric Reconstruction of Coherence Matrix T

Remote Sensing, 2019
In the frame of polarimetric synthetic aperture radar (SAR) tomography, full-ranks reconstruction framework has been recognized as a significant technique for fully characterization of superimposed scatterers in a resolution cell.
Hossein Aghababaee, Giampaolo Ferraioli, Laurent Ferro-Famil, Gilda Schirinzi, Yue Huang   +4 more
doaj   +1 more source

Dual Polarimetric Radar Vegetation Index for monitoring forest moisture stress using time series of Sentinel‐1 SAR data

Plant Biology, EarlyView.
This study demonstrates the potential of the Sentinel‐1 Dual Polarimetric Radar Vegetation Index, combined with climate variables and the Standardized Precipitation–Evapotranspiration Index, to effectively detect and monitor drought‐induced stress in temperate broadleaf deciduous forests.
B. Ranjit, W. Bijker, H. Aghababaei, A. Stein   +3 more
wiley   +1 more source

Polarimetry and photometry of the peculiar main-belt object 7968 = 133P/Elst-Pizarro

, 2010
133P/Elst-Pizarro is an object that has been described as either an active asteroid or a cometary object in the main asteroid belt. Here we present a photometric and polarimetric study of this object in an attempt to infer additional information about ...
Bagnulo, Bagnulo, Bagnulo, Beisser, Boehnhardt, Boehnhardt, Boehnhardt, Donati, G. P. Tozzi, H. Boehnhardt, Hsieh, Hsieh, Hsieh, J.-B. Vincent, Jewitt, K. Muinonen, Kinoshita, Lamy, Lamy, Lamy, Levison, Li, Li, Licandro, Licandro, Lupishko, Muinonen, Nesvorný, Penttilä, S. Bagnulo, Snodgrass, Tozzi, Tozzi, Tozzi, Tubiana   +34 more
core   +1 more source

An Icon-Based Synoptic Visualization of Fully Polarimetric Radar Data

Remote Sensing, 2012
The visualization of fully polarimetric radar data is hindered by traditional remote sensing methodologies for displaying data due to the large number of parameters per pixel in such data, and the non-scalar nature of variables such as phase difference ...
Iain H. Woodhouse, Dean Turner
doaj   +1 more source

Hill‐Terrain Modulation of Inland Snow‐Cloud Microphysics: Polarimetric Radar and Balloon‐Borne Particle Imaging Radiosonde Observations

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Snow‐cloud microphysics over inland hills partly resembles that over high mountains, yet exhibits notable differences. During 2024–2025 winter, coordinated observations in Tokamachi City, Niigata Prefecture, Japan, were conducted using four launches of a newly developed balloon‐borne particle‐imaging radiosonde (Rainscope) together with dual X‐
K. Takami, K. Suzuki, Y. Hara, Y. Fujimori   +3 more
wiley   +1 more source