Title: APPLICATION OF SBAS PSEUDORANGE AND CARRIER PHASE SIGNALS TO PRECISE INSTANTANEOUS SINGLE-FREQUENCY POSITIONING |
Authors: Paziewski Jacek, Wielgosz Pawel and Krukowska Marta |
DOI: 10.13168/AGG.2013.0041 |
Journal: Acta Geodynamica et Geomaterialia, Vol. 10, No. 4 (172), Prague 2013 |
Full Text: PDF file (0.4 MB) |
Keywords: GNSS, Galileo, SBAS, EGNOS, precise satellite positioning |
Abstract: This research evaluates the potential benefits of the tightly combined processing of a global navigation satellite system
together with the additional ranging observations from a satellite based augmentation system. In specific, the experiment
presents performance of precise instantaneous single-frequency positioning based on European Galileo and EGNOS
navigation systems. Due to currently low number of Galileo satellites, the test observational data were obtained with hardware
GNSS signal simulator. All calculations were performed with in-house developed software - GINPOS.
The results show that it is possible to obtain improvement in the accuracy and reliability of single-frequency precise
positioning when including observations from SBAS systems. However, one must take into account that at middle latitudes
EGNOS satellites are observed at low elevations what results in higher atmospheric errors affecting its signals. |