Please use this identifier to cite or link to this item:
|Title:||Inter-system Bias: Stability and Impact on Multi-constellation Positioning|
|Authors:||GIOIA Ciro; GAGLIONE Salvatore; BORIO DANIELE|
|Publisher:||Institute of Electrical and Electronics Engineers (IEEE)|
|Type:||Articles in periodicals and books|
|Abstract:||Global Navigation Satellite Systems (GNSSs) operate using independent time scales. For this reason, the determination of inter-system time offsets is required to enable multi-constellation solution. In this paper, two different approaches for the determination of the inter-system bias are considered and their performance is evaluated using measurements from three multi-constellation receivers. From the results obtained, it can be noted that the Galileo to GPS Time offset (GGTO) is more stable than the GPS/GLONASS inter-system bias which is characterized by a small drift. Different receivers provide different estimates of the inter-system bias, however the inter-system bias can be considered constant over a short time interval, hence an additional equation can be introduced in the estimation process. The use of pseudo-measurement on the inter-system bias significantly improves multi-constellation positioning performance.|
|JRC Directorate:||Space, Security and Migration|
Files in This Item:
There are no files associated with this item.
Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.