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vol.22 número3USO DE REDES NEURAIS ARTIFICIAIS NA PONDERAÇÃO INICIAL DA TÉCNICA AHP EM ANÁLISES DE VULNERABILIDADE DE BACIAS HIDROGRÁFICASAVALIAÇÃO DA QUALIDADE DE DADOS AMBIENTAIS POR MEIO DE TÉCNICAS DE ANALÍTICA VISUAL índice de autoresíndice de assuntospesquisa de artigos
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Boletim de Ciências Geodésicas

versão impressa ISSN 1413-4853versão On-line ISSN 1982-2170

Resumo

FILHO, Flávio Guilherme Vaz de Almeida et al. PPP Technical Application for Positioning in Brazil Cabotage: A Case Study. Bol. Ciênc. Geod. [online]. 2016, vol.22, n.3, pp.526-541. ISSN 1413-4853.  http://dx.doi.org/10.1590/S1982-21702016000300030.

This paper presents a methodology for GPS instrumentation and data post-processing for precise vessel tracks positioning along the Brazilian coast. In order to reach this aim, a container vessel was equipped with a pair of GPS receivers (L1/L2) for GPS data collection in sea path, from Santos (SP) to Suape (PE). The data were processed using Precise Point Positioning (PPP) methodology. The coordinates accuracy obtained for this path was about 23.1 cm. If the first 60 minutes of data were not used, the accuracy improved to approximately 8.0 cm. The correlation coefficient estimated between the receivers bearing was R² = 0.922. Therefore, it was possible to obtain accurate information about the vessel trajectory and its speed, acceleration, relative drift and the tilt amplitude. This information will be utilized as input parameters of the greenhouse gas emissions (GHG) models previously developed

Palavras-chave : GPS; PPP; Cabotage.

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