Polarimetric Synthetic Aperture Radar (PolSAR) images containing cities may exhibit misclassified areas when using polarimetric decompositions. Several articles relate this problem to the effects of orientation between the facades of buildings and the acquisition trajectory. Materials also play a role in polarimetric behavior. This paper deals with...
Published in Plant and Soil
AimsOver the last decade the induced polarization (IP) method has emerged as a promising tool for subsurface investigation with growing interest for biogeophysics.MethodsIn this work, in addition to electrical resistivity methods, IP was tested experimentally as a proxy for identifying and discriminating tree coarse roots from the surrounding soil....
When an electromagnetic wave is scattered by a rough surface, a speckle field is formed, which characteristics are depending on the surface properties. Polarimetry of speckle fields leads to new variables for the characterization of material properties.However, polarimetric measurement is challenging in the case of low reflectance samples, or at th...
Context. Understanding the diversity of planets requires studying the morphology and physical conditions in the protoplanetary disks in which they form.Aims. We aim to study the structure of the ~10 Myr old protoplanetary disk HD 100453, to detect features that can trace disk evolution and to understand the mechanisms that drive these features.Meth...
In this paper, we propose the simulation of polarized speckle fields using the Stokes formalism, which allows the description of partially polarized electromagnetic waves. We define a unique parameter which determines the partial decorrelation of the involved fields, allowing to simulate the polarized speckles produced by all types of scatterers, f...
Published in Optics express
Using a recent method able to characterize the polarimetry of a random field with high polarimetric and spatial accuracy even near places of destructive interference, we study polarized optical vortices at a scale below the transverse correlation width of a speckle field. We perform high accuracy polarimetric measurements of known singularities des...
This manuscript provides a summary of my research work conducted in ONERA about polarimetric radar images for remote sensing applications. A polarimetric radar system can measure a larger number of parameters than a single channel radar by discriminating between the polarizations of the electromagnetic wave that the system is able to transmit and r...
We propose in this thesis to study and imaging method which is adapted to the scene under investigation by the use of specific polarimetric excitations. The scenes under inversigation have two separate regions with different polarimetric properties. The specific fully polarized state of illumination is found by the physical criteria for oprimizing ...
Aujourd'hui, la variété des satellites de télédétection suscite un intérêt croissant à combiner des images de différents types a n de répondre plus largement aux besoins de renseignement rapide. Dans ce cadre, cet article vise à démontrer la faisabilité d'une détection de changement entre une image SAR haute résolution et une image polarimétrique d...
GRENOBLE1-BU Sciences (384212103) / Sudoc / MEUDON-Observatoire (920482302) / Sudoc / Sudoc / France / FR
