A statistical approach to static and dynamic tests for Global Navigation Satellite Systems receivers used in agricultural operations
Título del documento: A statistical approach to static and dynamic tests for Global Navigation Satellite Systems receivers used in agricultural operations
Revista: Scientia Agricola
Base de datos: PERIÓDICA
Número de sistema: 000455508
ISSN: 0103-9016
Autores: 1
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Instituciones: 1Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil
Año:
Volumen: 78
Número: 5
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés The adaptation of the Global Navigation Satellite Systems (GNSS) technology to fit the needs of farmers requires knowledge of the accuracy level delivered by a GNSS receiver in working conditions. To date, no methodology indicates the minimum number of replications to perform a statistical comparison. This study aims to advance knowledge on the methodological approach for evaluating the static and dynamic performance of GNSS receivers commonly used in agricultural operations. For the static test, a supporting frame in the ground carried all the receivers with coordinates properly transported. In the dynamic test, a circular rail with a 9.55 m radius was installed at ground level with a platform driven by an electric motor to carry the receivers at a constant speed. The transversal error of the receiver to the circular reference line was measured. The error with 95 % probability (E95) to receivers without differential correction ranged between 4.22 m and 0.85 m in the static test, and 2.25 m and 0.98 m in the dynamic test. Receivers with differential correction had E95 values below 0.10 m in the static test and 0.16 m in the dynamic test. Receivers with C/A code require five replications at minimum and 13 replications are needed for L1/L2 with differential correction signals in the dynamic test. The static test needs nine replications for C/A and five for L1/L2 with differential correction signals
Disciplinas: Geografía
Palabras clave: Cartografía,
Agricultura,
Sistemas de navegación satelital
Keyword: Cartography,
Agriculture,
Satellite navigation systems
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