دورية أكاديمية
A Statistical Inverse Method for Gridding Passive Microwave Data with Mixed Measurements
| العنوان: | A Statistical Inverse Method for Gridding Passive Microwave Data with Mixed Measurements |
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| المؤلفون: | Grimson, Rafael, Bali, Juan Lucas, Rajngewerc, Mariela, Martin, Laura San, Salvia, Maria Mercedes |
| بيانات النشر: | Institute of Electrical and Electronics Engineers |
| المجموعة: | CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: | EXPECTATION-MAXIMIZATION (EM) ALGORITHMS, INVERSE PROBLEMS, PASSIVE MICROWAVE REMOTE SENSING, https://purl.org/becyt/ford/1.5Test, https://purl.org/becyt/ford/1Test |
| الوصف: | When a passive microwave footprint intersects objects on the ground with different spectral characteristics, the corresponding observation is mixed. The retrieval of geophysical parameters is limited by this mixture. We propose to partition the study region into objects following an object-based image analysis procedure and then to refine this partition into small cells. Then, we introduce a statistical method to estimate the brightness temperature (TB) of each cell. The method assumes that TB of the cells corresponding to the same object is identically distributed and that the TB heterogeneity within each cell can be neglected. The implementation is based on an iterative expectation-maximization algorithm. We evaluated the proposed method using synthetic images and applied it to grid the TBs of sample AMSR -2 real data over a coastal region in Argentina. ; Fil: Grimson, Rafael. Universidad Nacional de San Martín; Argentina ; Fil: Bali, Juan Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina ; Fil: Rajngewerc, Mariela. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina ; Fil: Martin, Laura San. Universidad Nacional de San Martín; Argentina ; Fil: Salvia, Maria Mercedes. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0196-2892 |
| العلاقة: | info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/8468198Test; http://hdl.handle.net/11336/80643Test; Grimson, Rafael; Bali, Juan Lucas; Rajngewerc, Mariela; Martin, Laura San; Salvia, Maria Mercedes; A Statistical Inverse Method for Gridding Passive Microwave Data with Mixed Measurements; Institute of Electrical and Electronics Engineers; Ieee Transactions On Geoscience And Remote Sensing; 57; 3; 9-2018; 1347-1357; CONICET Digital; CONICET |
| الإتاحة: | https://doi.org/10.1109/TGRS.2018.2866196Test http://hdl.handle.net/11336/80643Test |
| حقوق: | info:eu-repo/semantics/restrictedAccess ; Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR) ; https://creativecommons.org/licenses/by-nc-sa/2.5/arTest/ |
| رقم الانضمام: | edsbas.27451E1 |
| قاعدة البيانات: | BASE |
| تدمد: | 01962892 |
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