Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/42547
Title: Receptores de sinais do sistema global de navegação por satélite submetidos a interferências físicas
Other Titles: Global satellite navigation system receivers submitted to physical interferences
Keywords: Geodésia
Levantamento planialtimétrico
Sistemas global de navegação por satélite
Geodesy
Planialtimetric survey
Global satellite navigation systems
Issue Date: 2020
Publisher: Universidade Estadual Paulista
Citation: JACINTHO, J. L. et al. Receptores de sinais do sistema global de navegação por satélite submetidos a interferências físicas. Energia na Agricultura, Botucatu, v. 35, n. 1, p. 115-125, jan./mar. 2020.
Abstract: Uncertainties are found in works with Global Navigation Satellite System receivers (GNSS). Therefore, this study aimed to investigate influence physical obstacles on accuracy and precision errors in surveys with GNSS receivers and their agricultural applications. Four control points tracked in static (base) mode and eight study points tracked in a kinematic mode in real-time (RTK) and Fast Static (ER) were implemented, using a pair of GNSS receivers and pair of GNSS-RTK receivers. Accuracy levels and precision were evaluated at eight points obtained by ER and RTK, combined with four fixed bases, allocated in three ways: minimal, medium and high physical interference. RTK survey points showed differences order millimeters to centimeters when compared to the survey (ER) coordinates. The obstruction levels, interference minimum, had an error within limits stipulated by equipment, interference maximum showed low accuracy. RTK survey is recommended for jobs where the coordinate precision is more relevant than accuracy.
URI: http://repositorio.ufla.br/jspui/handle/1/42547
Appears in Collections:DEG - Artigos publicados em periódicos



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