Results 101 to 110 of about 16,272 (256)

Spatially coupled inversion of spectro-polarimetric image data I: Method and first results

, 2012
When inverting solar spectra, image degradation effects that are present in the data are usually approximated or not considered. We develop a data reduction method that takes these issues into account and minimizes the resulting errors. By accounting for
van Noort, M.
core   +1 more source

Four-Channel Polarimetric-Spectral Intensity Modulation Imager

Applied Sciences
To solve the problems of channel crosstalk and edge jitter caused by the Fourier transform demodulation of polarimetric-spectral intensity modulation in polarization spectral data, this paper proposes a Four-Channel Polarimetric Spectrometer (FCPS) with ...
Jian Bo, Xueping Ju, Changxiang Yan
doaj   +1 more source

The chromosphere and prominence magnetometer

, 2012
The Chromosphere and Prominence Magnetometer (ChroMag) is conceived with the goal of quantifying the intertwined dynamics and magnetism of the solar chromosphere and in prominences through imaging spectro-polarimetry of the full solar disk.
Bethge, Christian, de Wijn, Alfred G., McIntosh, Scott, Tomczyk, Steven   +3 more
core   +1 more source

Spectro-polarimetric observations at the NVST: I. instrumental polarization calibration and primary measurements [PDF]

, 2020
Jun-Feng Hou, Zhi Xu, Shu Yuan, Yu-Chao Chen, Jian-Guo Peng, Dong-Guang Wang, Jun Xu, Yuan-Yong Deng, Zhen-Yu Jin, Kai-Fan Ji, Zhong Liu   +10 more
openalex   +1 more source

Polarization of asteroid (387) Aquitania: the newest member of a class of large inversion angle asteroids

, 2008
We present new imaging polarimetric observations of two Main Belt asteroids, (234) Barbara and (387) Aquitania, taken in the first half of 2008 using the Dual-Beam Imaging Polarimeter on the University of Hawaii 2.2 meter telescope, located on Mauna Kea,
Alberto Cellino, Burbine, Burbine, Bus, Cellino, Cellino, Cellino, Cellino, Degtjarev, Dollfus, Gil-Hutton, Joseph Masiero, Masiero, Muinonen, Pravec, Schmidt, Shkuratov, Sunshine, Sunshine, Tedesco, Zappala, Zellner, Zolensky   +22 more
core   +1 more source

Definition of an error map for DoFP polarimetric images and its application to retardance calibration

, 2022
Benjamin Le Teurnier, Ning Li, Matthieu Boffety, François Goudail   +3 more
openalex   +1 more source

Autonomous on-board data processing and instrument calibration software for the Polarimetric and Helioseismic Imager on-board the Solar Orbiter mission [PDF]

, 2020
K. Albert, J. Hirzberger, M. Kolleck, N. Albelo Jorge, D. Busse, J. Blanco Rodríguez, Juan Pedro Cobos Carrascosa, Björn Fiethe, A. Gandorfer, D. Germerott, Yejun Guan, Lucas Guerrero, P. Gutiérrez–Marques, David Hernández Expósito, Tobias Lange, H. Michalik, D. Orozco Suárez, J. Schou, S. K. Solanki, J. C. del Toro Iniesta, J. Woch   +20 more
openalex   +1 more source

Polca SARA - Full polarization, direction-dependent calibration and sparse imaging for radio interferometry

, 2019
New generation of radio interferometers are envisaged to produce high quality, high dynamic range Stokes images of the observed sky from the corresponding under-sampled Fourier domain measurements.
Birdi, Jasleen, Repetti, Audrey, Wiaux, Yves   +2 more
core   +1 more source

A Practical Calibration Method for RGB Micro-Grid Polarimetric Cameras [PDF]

, 2022
J.J. Rodriguez, L.F.C. Lew Yan Voon, Renato Martins, Olivier Morel   +3 more
openalex   +1 more source

Polarimetric Calibration of CASMSAR P-Band Data Affected by Terrain Slopes Using a Dual-Band Data Fusion Technique

Remote Sensing, 2015
For airborne synthetic aperture radar (SAR) polarimetric calibration (PolCAL) based on distributed targets, it is important to ensure the removal of both the polarimetric distortion and terrain slope effect. This paper proposes a new technique for PolCAL
Lu Liao, Jie Yang, Pingxiang Li, Fenfen Hua   +3 more
doaj   +1 more source