يعرض 1 - 20 نتائج من 49 نتيجة بحث عن '"SAR intensity"', وقت الاستعلام: 0.59s تنقيح النتائج
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    Academic Journal
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    Dissertation/ Thesis
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    Academic Journal

    المصدر: Remote Sensing; Volume 14; Issue 20; Pages: 5128

    جغرافية الموضوع: agris

    وصف الملف: application/pdf

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    Academic Journal
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    Academic Journal
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    Academic Journal
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    Academic Journal

    المساهمون: Asian School of the Environment, Earth Observatory of Singapore

    وصف الملف: 22 p.; application/pdf

    Relation: Remote Sensing; Lin, N. Y., Yun, S.-H., Bhardwaj, A., & Hill, E. M. (2019). Urban flood detection with Sentinel-1 Multi-Temporal Synthetic Aperture Radar (SAR) observations in a Bayesian Framework : a case study for Hurricane Matthew. Remote Sensing, 11(15), 1778- doi:10.3390/rs11151778; https://hdl.handle.net/10356/85554; http://hdl.handle.net/10220/50441

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    Academic Journal

    المصدر: Remote Sensing; Volume 11; Issue 20; Pages: 2351

    جغرافية الموضوع: agris

    وصف الملف: application/pdf

    Relation: Remote Sensing in Geology, Geomorphology and Hydrology; https://dx.doi.org/10.3390/rs11202351

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    Academic Journal

    المؤلفون: Alessandro Mondini

    المصدر: Remote Sensing; Volume 9; Issue 6; Pages: 554

    مصطلحات موضوعية: spatial autocorrelation, event landslides, SAR intensity

    جغرافية الموضوع: agris

    وصف الملف: application/pdf

    Relation: Remote Sensing in Geology, Geomorphology and Hydrology; https://dx.doi.org/10.3390/rs9060554

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    Academic Journal
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    المصدر: Karakuş, O, Kuruoglu, E E & Achim, A 2020, ' A Generalized Gaussian Extension to the Rician Distribution for SAR Image Modeling ', arXiv . < https://arxiv.org/abs/2006.08300 >
    IEEE transactions on geoscience and remote sensing (2021). doi:10.1109/TGRS.2021.3069091
    info:cnr-pdr/source/autori:Karakus O.; Kuruoglu E.E.; Achim A./titolo:A generalized Gaussian extension to the Rician distribution for SAR image modeling/doi:10.1109%2FTGRS.2021.3069091/rivista:IEEE transactions on geoscience and remote sensing/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume

    وصف الملف: application/pdf

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    المصدر: Remote Sensing, Vol 11, Iss 19, p 2231 (2019)

    مصطلحات موضوعية: urban flood mapping is challenging due to the complicated backscattering mechanisms in urban environments and in addition to SAR intensity other information is required. This paper introduces an unsupervised method for flood detection in urban areas by synergistically using SAR intensity and interferometric coherence under the Bayesian network fusion framework. It leverages multi-temporal intensity and coherence conjunctively to extract flood information of varying flooded landscapes. The proposed method is tested on the Houston (US) 2017 flood event with Sentinel-1 data and Joso (Japan) 2015 flood event with ALOS-2/PALSAR-2 data. The flood maps produced by the fusion of intensity and coherence and intensity alone are validated by comparison against high-resolution aerial photographs. The results show an overall accuracy of 94.5% (93.7%) and a kappa coefficient of 0.68 (0.60) for the Houston case, urban flood mapping, the current operational services are mainly focused on flood in rural areas and flooded urban areas are less considered. In practice, Science, bayesian network, insar coherence, Synthetic Aperture Radar (SAR) observations are widely used in emergency response for flood mapping and monitoring. However, synthetic aperture radar (sar), and an overall accuracy of 89.6% (86.0%) and a kappa coefficient of 0.72 (0.61) for the Joso case with the fusion of intensity and coherence (only intensity). The experiments demonstrate that coherence provides valuable information in addition to intensity in urban flood mapping and the proposed method could be a useful tool for urban flood mapping tasks

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    Academic Journal
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    Academic Journal

    المؤلفون: Fumio YAMAZAKI, Pralhad UPRETY

    المصدر: Journal of Japan Association for Earthquake Engineering. 2012, 12(6):6-21

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    Academic Journal

    المصدر: 日本建築学会構造系論文集 / Journal of Structural and Construction Engineering (Transactions of AIJ). 2002, 67(551):53

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    Academic Journal
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    Academic Journal
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