Desarrollo e implementación de un simulador de datos GNSS

Resum

This thesis introduces a simulator of GNSS observations. These observations will be close to de data that will be obtained in the future scenario multi-frequency and multi-constellation. The aim is to use the simulated observations to test and update the algorithms that are being developed in many research centres. Furthermore, new improvements and features have been added into the open source of positioning and navigation “goGPS”. The corresponding improvements and results have been published in the journal “GPS Solutions”. Finally, a new method based on collocation approach is introduced. This method predicts the corrections to be applied to a user connected to a reference station when the connection with this station is lost. In this way, the estimated positions improve because the continuity and homogeneity of this position does not decrease drastically.