Results 61 to 70 of about 3,181,576 (160)

DETECTION OF BUILT-UP AREAS USING POLARIMETRIC SYNTHETIC APERTURE RADAR DATA AND HYPERSPECTRAL IMAGE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Polarimetric synthetic aperture radar (POLSAR) is an advantageous data for information extraction about objects and structures by using the wave scattering and polarization properties.
R. Bordbari, Y. Maghsoudi, M. Salehi
doaj   +1 more source

Multiparameter Adaptive Target Classification Using Full-Polarimetric GPR: A Novel Approach to Landmine Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Full-polarimetric ground penetrating radar (FP-GPR) can measure the ability of an object to change the polarization of electromagnetic waves. Compared to the traditional GPR, it has a stronger capability to identify underground objects.
Haoqiu Zhou   +4 more
doaj   +1 more source

Improved Cerrado Wetland Mapping Through Seasonal Moisture Metrics, Terrain Information and Semantic Segmentation

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Brazil's Cerrado valley wetlands—swamp savanna and gallery forest—are highly important for the biome's water cycle and carbon storage and are susceptible to degradation from the impacts of land use expansion and the climate crisis. In support of their detailed monitoring and assessment, we developed and tested a transferable mapping approach that ...
Felix Beer   +6 more
wiley   +1 more source

Extinction estimation over land ice using long-wavelength Pol-InSAR [PDF]

open access: yes, 2008
In recent years there has been increased interest in using SAR to study and monitor glaciers and ice sheets for glaciological and climate change research.
Sharma, Jayanti   +2 more
core  

PolSAR image classification based on Laplacian Eigenmaps and superpixels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
This paper proposes a method of polarimetric synthetic aperture radar (PolSAR) image classification using improved superpixel segmentation and manifold learning.
Haijiang Wang   +2 more
doaj   +1 more source

Automatic Ship Detection Using PolSAR Imagery and the Double Scatterer Model

open access: yesGeomatics, 2023
In ship detection by means of Polarimetric SAR imagery, a very promising feature is the characterization of the pixels of the ship based on the elementary scattering mechanisms that can be extracted using different decomposition algorithms.
Konstantinos Karachristos   +1 more
doaj   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

open access: yesComputer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source

Comparison of Methods for Classification of Land Cover using Poarimetric SAR data [PDF]

open access: yes, 2006
Polarimetric SAR data are coherent by nature of the principle of operation. However, most often incoherent ap-proaches are chosen for the post-processing in order to apply conventional averaging and statistical methods.
Krogager, Ernst   +4 more
core  

Polarimetric Synthetic Aperture Radar Speckle Filter Based on Joint Similarity Measurement Criterion

open access: yesRemote Sensing, 2023
Polarimetric Synthetic Aperture Radar (PolSAR) data is inherently characterized by speckle noise, which significantly deteriorates certain aspects of the quality of the PolSAR data processing, including the polarimetric decomposition and target ...
Fanyi Tang   +6 more
doaj   +1 more source

Coupling Oxygen‐Enriched Drip Irrigation With an Optimized Nitrogen Rate Improves Yield, Water Productivity and Grain Quality of Winter Wheat: A Two‐Season Field Study

open access: yesJournal of Agronomy and Crop Science, Volume 212, Issue 6, November 2026.
ABSTRACT Drip irrigation displaces soil air at the emitter and transiently depresses dissolved oxygen (DO) in the wetted root zone, and recovery is slow in fine‐textured, slightly saline soils. Whether aeration of the irrigation stream can be combined with nitrogen (N) management to raise water productivity while safeguarding grain quality in winter ...
Qi Xu   +3 more
wiley   +1 more source

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