Results 21 to 30 of about 5,564 (299)
Radarsat backscattering from an agricultural scene [PDF]
Pesquisa Agropecuária Brasileira, 2001 Orbital remote sensing in the microwave electromagnetic region has been presented as an important tool for agriculture monitoring. The satellite systems in operation have almost all-weather capability and high spatial resolution, which are features ...
Antonio Roberto Formaggio +2 more
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A new model for the backscatter coefficient in nanoscale MOSFETs [PDF]
2010 Proceedings of the European Solid State Device Research Conference, 2010 In this work, we present a new model for the backscatter coefficient in nanoscale MOSFETs. The model assumes that only few backscattering events occur, which is likely to hold for devices with channel length in the order of the carrier mean free path. Both elastic and inelastic scattering mechanisms are accounted for.
J. L. P. J. van der Steen +3 more
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Remote Sensing, 2022 An understanding of land and sea surface backscatter coefficients at high frequencies (HF) is required to accurately assess ionospheric propagation conditions for over-the-horizon radar. In this paper, two methods of calculating sea surface backscatter coefficients are compared.
Danielle Edwards +2 more
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Developing a New Method to Identify Flowering Dynamics of Rapeseed Using Landsat 8 and Sentinel-1/2
Remote Sensing, 2020 Identifying the rapeseed (Brassica napus L.) flowering dates are important for planting area estimation, growth monitoring, and yield estimation. However, there is currently a lack of data on rapeseed flowering dates at the parcel scale. In this study, a
Jichong Han, Zhao Zhang, Juan Cao
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Why is the Ratio of Reflectivity Effective for Chlorophyll Estimation in the Lake Water?
Remote Sensing, 2010 The reasons why it is effective to estimate the chlorophyll-a concentration with the ratio of spectral radiance reflectance at the red light region and near infrared regions were shown in theory using a two-flow model.
Kazuo Oki
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Backscatter Characteristics Analysis for Flood Mapping Using Multi-Temporal Sentinel-1 Images
Remote 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
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Analysis of Interpolation Methods in the Validation of Backscattering Coefficient Products
Sensors, 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 the product production system can be more closely targeted, to ensure the image product accuracy in ...
Yanan Jiao +4 more
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Potential of L- and C- Bands Polarimetric SAR Data for Monitoring Soil Moisture over Forested Sites
Remote Sensing, 2022 This study investigates the potential of L- and C- bands Polarimetric Synthetic Aperture Radar (PolSAR) data to monitor soil moisture over the forested sites of SMAP Validation Experiment 2012 (SMAPVEX12).
Ramata Magagi +4 more
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An Improved Radiative Transfer Model for Polarimetric Backscattering from Agricultural Fields at C- and X-Bands [PDF]
Journal of Electromagnetic Engineering and Science, 2021 The first-order vector radiative transfer model (FVRTM) is modified mainly by examining the effects of leaf curvature of vegetation canopies, the higher-order multiple scattering among vegetation scattering particles, and the underlying-surface roughness
Yisok Oh +2 more
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A Simple Empirical Model for the Radar Backscatters of Skewed Sea Surfaces at X- and Ku-Bands [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2019 This paper presents a new simple empirical model for the backscattering coefficients of skewed sea surfaces. Instead of using a complicated bispectrum function for the backscattering coefficient of a skewed sea surface, a simple modifying term is ...
Taekyeong Jin, Yisok Oh
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