Radiometric Resolution
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Processing, radiometric correction, autofocus and polarimetric classification of circular SAR data.
The demand for high resolution SAR systems and also for imaging techniques to retrieve scene information on the third dimension have stimulated the development of new acquisition modes and processing approaches. This work studies one of the newest SAR acquisition modes being used, namely the Circular SAR, in which the platform follows a non-linear circular t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/10/2010
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2. Processing, radiometric correction, autofocus and polarimetric classification of circular SAR data.
The demand for high resolution SAR systems and also for imaging techniques to retrieve scene information on the third dimension have stimulated the development of new acquisition modes and processing approaches. This work studies one of the newest SAR acquisition modes being used, namely the Circular SAR, in which the platform follows a non-linear circular t
Publicado em: 2010
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3. Phytophysiognomic forms identification and fragmentation analysis on "Parque Natural Municipal Salto do SucuriÃ" using high resolution image / IdentificaÃÃo de fitofisionomias e anÃlise da fragmentaÃÃo da vegetaÃÃo na regiÃo do Parque Natural Municipal Salto do SucuriÃ, utilizando imagem de alta resoluÃÃo
The Cerrado in the Mato Grosso do Sul state is devastated and the few remnants of native vegetation are only found in protected areas. In this way, becomes priority the study of the remnants of vegetation in the Cerrado, looking for its protection. This work objective was to identify different phytophysiognomic forms, based on the identification key proposed
Publicado em: 2008
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4. Análise do NDVI/NOAA em cana-de-açúcar e Mata Atlântica no litoral norte de Pernambuco, Brasil
Neste trabalho se realizou a análise espaço-temporal do NDVI (Índice de Vegetação da Diferença Normalizada) na cultura da cana-de-açúcar, considerando-se a idade fenológica e a influência da precipitação pluvial dos meses atual e anterior relativos à safra 2003/2004. A metodologia foi aplicada em três áreas, ou seja, duas com cana-de-açúcar
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2007-12
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5. Aerogeofísica aplicada à compreensão do sistema de empurrões da sequência Santa Terezinha de Goiás, Brasil Central
Recent Airborne Survey data from the Goias state was processed and interpreted in the present dissertation. Radiometric data was adquired sampling between 1 s and 0.1 s for magnetometry, flying at a height of 100 meters, with spacing of 500m and tied with control lines with spacing of 5000m, collected througout NS production lines. We describe the techniques
Publicado em: 2007
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6. Object-oriented analysis of high spatial resolution sensor images for intra-urban land cover classification: the case of São José dos Campos - SP, Brazil / Análise orientada a objetos de imagens de satélites de alta resolução espacial aplicada à classificação de cobertura do solo no espaço intra-urbano: o caso de São José dos Campos-SP
The latest advances in the spatial resolution of orbital sensor systems have effectively increased our capacity to discriminate Earth surface targets. One of the application fields mostly favoured by this new type of sensor data is the remote sensing of urban areas. Although urban remote sensing already disposed of information sources with high spatial resol
Publicado em: 2005
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7. Soil carbon sequestration - Evaluation of its potential in pastures on sandy soils, Anhembi - Piracicaba/SP / Seqüestro de carbono nos solos - Avaliação das potencialidades dos solos arenosos sob pastagens, Anhembi - Piracicaba - SP"
The project studied the potential for soil carbon sequestration in pastures growing on sandy soils in the Cerrado region and for the application of remote sensing techniques for estimating carbon sequestration levels. The main focus was deducing how many tons per hectare could be sequestered if better pasture management techniques were adopted. Four pastures
Publicado em: 2003
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8. Comparação entre imagens pancromaticas do satelite Ikonos-II e Landsat/ETM + na identificação de plantios de cafe (Coffea arabica)
The use of orbital remote sensing and geoprocessing techniques represents significant advance for agriculture data surveying, considering its multispectral feature and repetitiveness. Its application for crop monitoring becomes more important, mainly with the possibility of using the sensors of high spatial, spectral, temporal and radiometric resolution. Thi
Publicado em: 2002
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9. Caracterização de um sistema imageador infravermelho termal através de suas resoluções espacial e radiométrica / Characterization of a thermal infrared line scanner trough its spatial and radiometric resolutions
The thermal infrared spectral bands in airborne sensors are still little explored in Brazil. The Institute of Advanced Studies (IEAv) at the Aerospace Technical Center (CTA) developed the Thermal Infrared Imaging System (SISIMI), an aerial surveillance prototype sensor operating in the 8 to 12.5 um band with a rotating imaging scanner of 720 lines/s. The obj
Publicado em: 2002
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10. Uso de imagens Radarsat-1 para fins de mapeamento de uso da terra e cobertura do solo em ambiente tropical úmido urbano: o caso de Manaus, Estado do Amazonas. / Use of radarsat-1 data in the identification of targets related to land use and land cover in urban humid tropical region: the case of Manaus, state of the Amazon, Brazil
The use of remote sensing data acquired through Synthetic Aperture Radar has been a recent common trend for land use and land cover mapping purposes. The information derived from this kind of data has been applied to distinct related application fields, such as: urban pattern analysis and mapping, settlements identification, urban change detection and even m
Publicado em: 2002
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11. Spectral analyses applied to the identification of optical active components at Amazon aquatic systems / Análise espectral de sistemas aquáticos da amazônia para a identificação de componentes opticamente ativos
The use of remote sensing in water quality researches is important to provide data for temporal and spatial analysis in large areas. It is necessary to increase the knowledge on water spectral properties to support a more efficient application of hyperspectral sensors. The objective of this study was the analysis of spectral data derived from using field spe
Publicado em: 2002
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12. A inter-relacao das resolucoes espacial e radiometrica na faixa do infravermelho termal / Interrelationship of spatial and radiometric resolution in the thermal infrared band
Determinam-se as resolucoes espacial e radiometrica de um sistema imageador na faixa do infravermelho termal, estabelecendo-se a sua inter-relacao. A resolucao espacial foi determinada a partir da MTF do sistema, obtida atraves de experimentos onde foram imageados alvos artificiais, explorando-se diferencas de emissividade ou temperatura. Os alvos utilizados
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/1989