Results 1 to 10 of about 8,674 (299)

Analysis of Interpolation Methods in the Validation of Backscattering Coefficient Products [PDF]

open access: yesSensors, 2023
Validation is the basis of synthetic aperture radar (SAR) image quantification applications. Based on the point target of the field site, the radiation characteristics of the backscattering coefficient image can be used to optimize the SAR imaging, and ...
Yanan Jiao   +4 more
doaj   +5 more sources

The Role of Molecular Structure in Monte Carlo Simulations of the Secondary Electron Yield and Backscattering Coefficient from Methacrylic Acid [PDF]

open access: yesMolecules, 2023
In this paper, we show the influence of the chemical structure of four different conformers on the secondary electron emission and backscattering of an electron beam from a gel of methacrylic acid.
Katarzyna Wiciak-Pawłowska   +5 more
doaj   +4 more sources

Seasonal variations of the backscattering coefficient measured by radar altimeters over the Antarctic Ice Sheet [PDF]

open access: yesThe Cryosphere, 2018
Spaceborne radar altimeters are a valuable tool for observing the Antarctic Ice Sheet. The radar wave interaction with the snow provides information on both the surface and the subsurface of the snowpack due to its dependence on the snow properties ...
F. I. Adodo   +3 more
doaj   +3 more sources

Analysis of the Dielectric Constant of Saline-Alkali Soils and the Effect on Radar Backscattering Coefficient: A Case Study of Soda Alkaline Saline Soils in Western Jilin Province Using RADARSAT-2 Data [PDF]

open access: yesThe Scientific World Journal, 2014
Soil salinity is a global problem, especially in developing countries, which affects the environment and productivity of agriculture areas. Salt has a significant effect on the complex dielectric constant of wet soil.
Yang-yang Li   +4 more
doaj   +2 more sources

Backscatter Characteristics Analysis for Flood Mapping Using Multi-Temporal Sentinel-1 Images

open access: yesRemote Sensing, 2022
Change detection between images of pre-flood and flooding periods is a critical process for flood mapping using satellite images. Flood mapping from SAR images is based on backscattering coefficient differences.
Minmin Huang, Shuanggen Jin
doaj   +1 more source

Determination of electron backscattering coefficient of beryllium by a high-precision Monte Carlo simulation

open access: yesNuclear Materials and Energy, 2021
We present an up-to-date Monte Carlo simulation of electron backscattering coefficient of beryllium, which is an important material in fusion reactor, at an impact energy range of electrons between 100 eV and 100 keV.
Abrar Hussain   +5 more
doaj   +1 more source

An Improved Method of Noise Subtraction for the CFOSAT Scatterometer

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The microwave scatterometer onboard the China-France Oceanography Satellite (CFOSAT Scatterometer, CSCAT) is the first rotating fan-beam scatterometer (RFSCAT) in operation.
Kuo Zhang   +5 more
doaj   +1 more source

Novel Inversion Algorithm for the Atmospheric Aerosol Extinction Coefficient Based on an Improved Genetic Algorithm

open access: yesPhotonics, 2022
As an important atmospheric component, aerosols play a very important role in the radiation budget balance of the earth–atmosphere system. To study the optical characteristics of aerosols, it is necessary to use an inversion algorithm to process the ...
Minghuan Hu   +5 more
doaj   +1 more source

Backscatter Coefficient Estimation Using Tapers with Gaps [PDF]

open access: yesUltrasonic Imaging, 2014
When using the backscatter coefficient (BSC) to estimate quantitative ultrasound parameters such as the effective scatterer diameter (ESD) and the effective acoustic concentration (EAC), it is necessary to assume that the interrogated medium contains diffuse scatterers.
Adam C, Luchies, Michael L, Oelze
openaire   +2 more sources

A MODIFIED TWO-SCALE MICROWAVE SCATTERING MODEL FOR A GAUSSIAN-DISTRIBUTED CONDUCTING ROUGH SURFACE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
A modified two-scale microwave scattering model (MTSM) was presented to describe the scattering coefficient of natural rough surface in this paper. In the model, the surface roughness was assumed to be Gaussian so that the surface height z(x, y) can be ...
F. Yu, H. Wang, Z. Y. Chen
doaj   +1 more source

Home - About - Disclaimer - Privacy