Výsledky vyhledávání - "synthèse d'ouverture"

Dissertation/ Thesis

Indicators of permafrost thawing rates and mechanisms

Autor: Sergeant, Flore

Titre de l'écran-titre (visionné le 29 mai 2023)
L'amplification polaire du changement climatique, qui conduit les hautes latitudes à se réchauffer près de deux fois plus vite que les régions tempérées, entraîne la diminution progressiv

Externí odkaz: http://hdl.handle.net/20.500.11794/118725

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Rôle de la perturbation par le vent dans les forêts tropicales via un modèle dynamique de végétation et l'observation satellitaire

Autor: Rau, E-Ping

Publikováno v: Global Changes. Université Paul Sabatier-Toulouse III, 2022. English. ⟨NNT : 2022TOU30003⟩

Natural disturbances have an important influence on the structure, composition and functioning of tropical forests and a role in the regulation of biogeochemical cycles. The frequency and intensity of natural disturbances are modified by climate chan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2191::57aabf245a72896cfb9f0462a759b257
https://theses.hal.science/tel-03699667/document

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Réseau de neurones à valeurs complexes pour les applications radar

Autor: Barrachina, Jose Agustin

Radar signal and SAR image processing generally require complex-valued representations and operations, e.g., Fourier, wavelet transforms, Wiener, matched filters, etc. However, the vast majority of architectures for deep learning are currently based

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______166::aaae4768f0b329ce88e8c28ebf200492
https://theses.hal.science/tel-03927422

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Contributions to the study of millimeter-wave computational interferometric imaging systems

Autor: Abid, Sana

Publikováno v: Traitement du signal et de l'image [eess.SP]. Université de Limoges, 2021. Français. ⟨NNT : 2021LIMO0021⟩

This work focuses on the transposition of interferometric computational imaging techniques to W-band. Based on the use of components that enable the multiplexing of signals in thephysical layer, these approaches greatly limit the complexity and cost

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d659cd61557a9dcfc32adf577a5e44c6
https://tel.archives-ouvertes.fr/tel-03246867

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Estimation of oceanographic conditions by data inversion of a non-calibrated imaging radar

Autor: Schreiber, Floriane

Publikováno v: Traitement du signal et de l'image [eess.SP]. Université de Toulon, 2020. Français. ⟨NNT : 2020TOUL0016⟩
Traitement du signal et de l'image [eess.SP]. Université de Toulon, 2020. Français

Many empirical models describing sea clutter statistical distribution exist but they do not directly depend on the sea sate. They are not suitable to perform inversion. To model the statistical distribution of the backscattered intensity, we use a tw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3a8b4a88ad9bba50bfd7bf07599cf83b
https://hal.archives-ouvertes.fr/tel-03200071v2/document

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P-band PolSAR data inversion for forest biomass estimation

Autor: Gelas, Colette

Publikováno v: Interfaces continentales, environnement. Université Paul Sabatier-Toulouse III, 2020. Français. ⟨NNT : 2020TOU30282⟩

This thesis took place during the preparation phase of the BIOMASS ESA (European Space Agency) mission, which plans to exploit for the first time ever a P-band (435 MHz) spaceborne SAR, with the aim at mapping forest biomass and height worldwide for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::fdffbfa45315daa40699c6ae9a3c0d52
https://theses.hal.science/tel-03278312/file/2020TOU30282b.pdf

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SAR analysis of wetland ecosystems: Effects of band frequency, polarization mode and acquisition dates

Autor: Sébastien Rapinel, Elodie Fabre, Julien Denize, Julie Betbeder, Eric Pottier, Laurence Hubert-Moy

Publikováno v: ISPRS Journal of Photogrammetry and Remote Sensing
ISPRS Journal of Photogrammetry and Remote Sensing, Elsevier, 2020, 170, pp.103-113. ⟨10.1016/j.isprsjprs.2020.10.007⟩
ISPRS Journal of Photogrammetry and Remote Sensing, 2020, 170, pp.103-113. ⟨10.1016/j.isprsjprs.2020.10.007⟩

International audience; The availability of high spatial resolution synthetic aperture radar (SAR) sensors with a wide range of acquisition modes has increased greatly over the past decade and contributed significantly to the study of wetland ecosyst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5db402cf7850dd3dc529b6b556865a54
https://hal.archives-ouvertes.fr/hal-02998374/file/_accepted_version_Rapinel_al_2020_ISPRS.pdf

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Utilisation des techniques de télédétection pour mesurer la topographie des zones intertidales littorales dans le cadre de la mission SWOT

Autor: Salameh, Edward

Publikováno v: Earth Sciences. Normandie Université, 2020. English. ⟨NNT : 2020NORMR040⟩

Intertidal flats provide essential services including protection against storm surges and coastal flooding.These environments are characterized by a continuous redistribution of sediments and topographic changes.They are under increasing pressure due

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::00ad4545a42ee1175b75ecd078fbd4f1
https://tel.archives-ouvertes.fr/tel-03295350/file/edwardsalameh2.pdf

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Evaluation of sentinel-1 and -2 time series for estimating LAI and biomass of wheat and rapeseed crop types

Autor: Jacques Baudry, Julie Betbeder, Sébastien Rapinel, Audrey Mercier, Nicolas Jégou, Laurence Hubert-Moy

Publikováno v: Journal of Applied Remote Sensing
Journal of applied remote sensing
Journal of applied remote sensing, Bellingham, WA : SPIE, 2020, 14 (02), pp.1. ⟨10.1117/1.JRS.14.024512⟩

Monitoring crops at a fine scale is critical because it provides information crucial for assessing the influence of increased food production on sustainable management of agricultural landscapes. We assessed the potential of synthetic aperture radar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a489a35c63ad2b65005af1c38498f80d
http://agritrop.cirad.fr/595966/

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