Análise da precisão e acurácia de pontos georreferenciados com a técnica do código suavizado pela fase da portadora utilizando GPS de simples freqüência / Precision and accuracy analysis of georeferencing points using the carrier-smoothed-code technique with GPS single frequency receiver (L1)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The present dissertation has as objective to evaluate precision and discrepancies of coordinates (accuracy) obtained through GPS observations, in a rapid static method, measured by single frequency, which applies carrier-smoothed-code for different baseline length (20, 50, 75, 100, 150, 200 and 300 km), since continuous monitoring station from EESC/USP. This technique obtained a good repercussion in Brazil, since when its use was legitimate in rural property georeferencing, according to INCRAs norma técnica (technical rule), which allows the use of carrier-smoothed-code in view of the fact that presents accuracy with equal or inferior values to 50 cm. Currently, works using such technique are developed and accepted in order to compound database of national rural survey in Brazil. Based on the obtained results it was possible to evaluate that the technique does not guaranteed to requested requirement in 100% of measurements, and at the same time to verify the difference between post-processing precision, indicated by commercial software, as well as measured point accuracy compared with points established for this purposed.

ASSUNTO(S)

accuracy precision receiver l1 suavização do código pela fase da portadora precisão acurácia receptor de uma freqüência carrier-smoothed-code

ACESSO AO ARTIGO

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