The SIRGAS reference network is weekly processed; station positions are daily computed, and the seven individual daily solutions corresponding to a GPS week are combined in one weekly solution. The SIRGAS stations are classified in a core network (SIRGAS-C), with a continental coverage, and several densification networks, which correspond to the national reference networks (SIRGAS-N). The SIRGAS-C core network is processed by DGFI-TUM. The SIRGAS-N national networks are computed by the Latin American SIRGAS Processing Centres. The loosely constrained weekly solutions individually calculated for the national networks are combined with the loosely constrained weekly solution calculated for the SIRGAS-C core network to obtain compatible station positions and velocities in a continental level.
In addition to process the SIRGAS-C network, DGFI-TUM is responsible for combining the core network with the individual solutions delivered by the other SIRGAS Processing Centres. The main characteristics of the DGFI-TUM combination strategy are:
Dr.-Ing. Laura Sanchez
Tel. +49 89 23031-1295
Fax +49 89 23031-1240