| 1. Identificação | |
| Tipo de Referência | Resumo em Evento (Conference Proceedings) |
| Site | marte3.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 6qtX3pFwXQZ3r59YCT/GUTFm |
| Repositório | sid.inpe.br/iris@1905/2005/07.30.04.52.49 |
| Última Atualização | 2018:12.10.17.30.02 (UTC) marciana |
| Repositório de Metadados | sid.inpe.br/iris@1905/2005/07.30.04.53 |
| Última Atualização dos Metadados | 2021:02.11.18.30.41 (UTC) administrator |
| Rótulo | 11201 |
| Chave de Citação | FernandesSakaMasc:1994:SyApRa |
| Título | Synthetic apeture radar images simulation  |
| Ano | 1994 |
| Data Secundária | 19950801 |
| Data de Acesso | 01 jun. 2025 |
| Tipo Secundário | PRE CN |
| Número de Arquivos | 1 |
| Tamanho | 586 KiB |
| 2. Contextualização | |
| Autor | 1 Fernandes, David 2 Sakane, Fernando Toshinori 3 Mascarenhas, Nelson Delfino D'Avila |
| Grupo | 1 DMC-INPE-MCT-BR |
| Nome do Evento | Simpósio Brasileiro de Tecnologia Aerospacial, 2. |
| Localização do Evento | Sao Jose dos Campos, BR |
| Data | 17-21 out. 1994 |
| Título do Livro | Resumos |
| Histórico (UTC) | 2014-09-29 15:13:49 :: administrator -> marciana :: 1994 2014-09-30 16:01:31 :: marciana -> administrator :: 1994 2018-06-06 04:16:09 :: administrator -> marciana :: 1994 2018-12-10 17:30:03 :: marciana -> administrator :: 1994 2021-02-11 18:30:41 :: administrator -> marciana :: 1994 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Tipo de Versão | publisher |
| Palavras-Chave | ENGENHARIA E TECNOLOGIA ESPACIAL |
| Resumo | The Synthetic Aperture Radar (SAR) is an active microwave sensor installed in aircraft and satellites. It produces high resolution images that can be used in remote sensing activities. The SAR images are influenced mainly by the geometry of antenna illumination (Incidence, angle), by the parameters of the radar (polarization, frequency, pulse width, antenna pattern) an by the electromagnetics properties of the scene. It has some advantages in comparison with optical sensors. Some of them are the capability of imaging through clouds and at night. An example of this is the Pioneer mission I Venus. With the SAR It is possible to obtain a image of forest trees or the soil of that forest.The SAR is a coherent device and as all coherent processes such as laser or sonar 11 image is obtained with speckle noise. The speckle is a multiplicative noise caused by the roughness of the scene when the roughness is comparable with the electromagnetic radiation wavelength. The speckle makes difficult the visualization and the automatic interpretation of the images. There are several techniques for speckle reduction. A difficult problem in the test c speckle reduction algorithms is the simulation of realistic images with particularities that can be used to infer the ability of the algorithm in preserve the edges and the resolution of the image. It is showed in this work how realistic SAR images can be simulated through the SAR Point Spread Function. The Point Spread Function represents the image of a point target observed by the SAR and it defines the image resolution and the pixels correlation. Some examples of simulated images are showed for the E-SAR from German Space Agency, DLR. These activities at ITA are supported by UNDP/ICAO Project BRA-092/006, objective 6. |
| Área | ETES |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMC > Synthetic apeture radar... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/6qtX3pFwXQZ3r59YCT/GUTFm |
| URL dos dados zipados | http://urlib.net/zip/6qtX3pFwXQZ3r59YCT/GUTFm |
| Idioma | pt |
| Grupo de Usuários | administrator marciana |
| Grupo de Leitores | administrator marciana |
| Visibilidade | shown |
| Permissão de Leitura | allow from all |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/446AF4B |
| Acervo Hospedeiro | sid.inpe.br/banon/2001/04.03.15.36 |
| 6. Notas | |
| Campos Vazios | affiliation archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor electronicmailaddress format isbn issn lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress resumeid rightsholder schedulinginformation secondarykey secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarymark tertiarytype type url volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |