Measurements of the Quiet-Sun Level Brightness Temperature at 8 mm
Sign Up to like & getrecommendations! Published in 2018 at "Solar Physics"
DOI: 10.1007/s11207-018-1380-8
Abstract: Defining the solar brightness temperature accurately at millimeter wavelengths has always been challenging. One of the main reasons has been the lack of a proper calibration source. New Moon was used earlier as a calibration… read more here.
Keywords: sun level; quiet sun; temperature; brightness temperature ... See more keywords
Analysis of Chang'E-2 brightness temperature data and production of high spatial resolution microwave maps of the Moon
Sign Up to like & getrecommendations! Published in 2019 at "Icarus"
DOI: 10.1016/j.icarus.2018.09.036
Abstract: Abstract The microwave radiation passively emitted from the Moon is valuable for investigating the physical properties of the lunar regolith. Microwave maps, which can reveal subsurface characteristics at depths of centimeters to meters, give clues… read more here.
Keywords: temperature data; microwave maps; loss tangent; brightness temperature ... See more keywords
Morphology of 21cm brightness temperature during the Epoch of Reionization using Contour Minkowski Tensor
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/09/053
Abstract: We use morphological descriptors, Betti numbers and Contour Minkowski Tensor (CMT) on 21cm brightness temperature excursion sets, to study the ionization and heating history of the intergalactic medium (IGM) during and before the Epoch of… read more here.
Keywords: epoch reionization; contour minkowski; temperature; 21cm brightness ... See more keywords
Constraining the 21 cm brightness temperature of the IGM at z = 6.6 around LAEs with the murchison widefield array
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab2235
Abstract: The locations of Ly α-emitting galaxies (LAEs) at the end of the Epoch of Reionization (EoR) are expected to correlate with regions of ionized hydrogen, traced by the redshifted 21 cm hyperfine line. Mapping the neutral hydrogen… read more here.
Keywords: temperature; brightness temperature; widefield array; murchison widefield ... See more keywords
The high brightness temperature of B0529+483 revealed by RadioAstron and implications for interstellar scattering
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx2991
Abstract: The high brightness temperatures, $T_\mathrm{b}\gtrsim 10^{13}$ K, detected in several active galactic nuclei by RadioAstron space VLBI observations challenge theoretical limits. Refractive scattering by the interstellar medium may affect such measurements. We quantify the scattering… read more here.
Keywords: temperature b0529; b0529 483; brightness; brightness temperature ... See more keywords
Development of a Coherent Model for Radiometric Core Body Temperature Sensing
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology"
DOI: 10.1109/jerm.2021.3137962
Abstract: This paper examines the utility of a wideband, physics-based model to determine human core body or brain temperature via microwave radiometry. Pennes's bioheat equation is applied to a six-layer human head model to generate the… read more here.
Keywords: temperature; brightness temperature; core body; model ... See more keywords
Preliminary Studies on CIMR Antenna Pattern Brightness Temperature Compensation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2021.3124829
Abstract: Spaceborne microwave radiometry provides an essential contribution to monitoring the Earth with varying spatial resolution both related to the reflector dimension and the frequency of operation. The ESA's Copernicus imaging microwave radiometer (CIMR) mission aims… read more here.
Keywords: brightness temperature; preliminary studies; antenna pattern;
500–2000-MHz Airborne Brightness Temperature Measurements Over the East Antarctic Plateau
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2021.3056740
Abstract: Measurements of the 500–2000-MHz brightness temperature spectra of Antarctica acquired under the Ice Sheet and Sea Ice Ultrawideband Microwave Airborne eXperiment (ISSIUMAX) are reported. These data sets support the remote sensing of ice sheet properties,… read more here.
Keywords: ice sheet; brightness temperature; temperature; 2000 mhz ... See more keywords
Thermal Hyperspectral Image Denoising Using Total Variation Based on Bidirectional Estimation and Brightness Temperature Smoothing
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2021.3066627
Abstract: Compared with visible and near-infrared images, the long-wave infrared region hyperspectral image (LWIR HSI) is more vulnerable to noise pollution in the acquisition process due to its specific imaging mode. In this letter, a new… read more here.
Keywords: brightness temperature; estimation; total variation;
Wideband Microwave Calibration Target Design for Improved Directional Brightness Temperature Radiation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2021.3078784
Abstract: In this letter, the recent progress in optimizing the microwave calibration target is reported. Based on the former findings on the wideband reflectivity of the target and the analysis model for the directionally radiated brightness… read more here.
Keywords: microwave calibration; calibration target; brightness temperature; temperature ... See more keywords
Environmental Effects on Brightness Temperature Observation From an L-Band Radiometer
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3215937
Abstract: Measuring the microwave brightness temperature (TB) using a radiometer is important for estimating soil moisture (SM). However, no study has demonstrated the effect of environmental conditions on these measurements. With this technology being explored for… read more here.
Keywords: band; environment; correction equation; brightness temperature ... See more keywords