NDLI: Evaluación De Errores En El Posicionamiento Con Receptores Gps De Doble Frecuencia Bajo Cubierta Arbolada De Pinus Radiata D. Don

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Evaluación De Errores En El Posicionamiento Con Receptores Gps De Doble Frecuencia Bajo Cubierta Arbolada De Pinus Radiata D. Don

Content Provider	Semantic Scholar
Author	López, Mercedes Fernández Rodríguez-Pérez, José Ramón Dorado, Fernando Ablanedo, Enoc Sanz
Copyright Year	2010
Abstract	The use of GPS receivers in forestry has been widespread and this technology is used for location of inventory plots, guided forest machinery, recreational use and navigation, etc. The aim objective of this study was to evaluate the accuracy and positioning accuracy of dual-frequency GPS receivers under tree canopy of Pinus radiate stands. In order to compare the influence of tree canopy in the GPS positioning, 12 points were established in 4 stands with different densities (three plots of each density level). An additional point was located in a nearby area without trees. At each point, static observations were made for a period of one hour and the coordinates X,Y,Z were calculated for each second. Precisions, accuracies and theoretical distributions were identified for each type of stands. The stand variables related to horizontal accuracy were the number of trees per hectare (N), the Hart-Becking index (IH) and the quadratic mean diameter (dg). The probability that both the horizontal accuracy is less than 1 m and the vertical accuracy is less than 3 m is 70%. The results obtained will allow a more adequately planning of observations with GPS receivers in forest areas.
Starting Page	72
Ending Page	85
Page Count	14
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.age-geografia.es/tig/2010_Sevilla/ponencia1/FERNANDEZ.pdf
Alternate Webpage(s)	http://buleria.unileon.es/xmlui/bitstream/handle/10612/2745/Ramon.pdf;jsessionid=63C76BF6F22286ADE27E61D1A8600C18?sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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