Modelos Matemáticos Utilizados en el Cálculo del Retardo Ionosférico y Troposférico y su Influencia en Procesamiento GPS de Alta Precisión

Abstract

To result in a product of high precision and accuracy is very important to pay attention to all the factors that influence that outcome. Thus, in the GPS (Global Positioning System) positioning the partial or total elimination of errors in the observations it is necessary. In this paper the mathematical models of the ionosphere and troposphere used will be studied in data processing satellite navigation (GNSS). determining the variables that make up each mathematical model and the effect generated results when applying each of these models, by calculations with data from stations Continuas (ECO) and data from different projects to achieve obtain as a result statistical analysis for observing the differences and requirements to use each of the models in processing Global Positioning System (GPS) high precision. In the project it had with data from GPS permanent stations MAGNA ECO network Codazzi (IGAC), and 16 RINEX GPS vétices positioned above and for various purposes, processed with Leica Geo-office house program LeicaGeosystems. Using the six tropospheric six Ionospheric models in all possible combinations result 576 data; which demonstrate the importance of paying attention to processing parameters when post-processing the information obtained in the field, and according to the variables provable through mathematical theories of each model.