Assessing the accuracy of GPS networks using similarity transformation

MACKERN, MARÍA V.; BRUNINI C.

JOURNAL OF GEODESY (PRINT)

Springer

Lugar: Berlin; Año: 2003

0949-7714

The realization of the reference system, or what is usually known as network of control points for surveyors and geodesists, that materialize over the land a determined Conventional Reference System, has been a constant concern for geodesy. This presently named geodetic frame has evolved since the definition of the local geodetic datum to the International Terrestrial Reference Frames (ITFR). This change has occurred as a consequence of the improvements, added to the increasing demand of geo-referenced information in the global systems. The response has been the development of new concepts in the materialization of reference system from spatial techniques, in order to obtain very accurate realizations of such systems. In the majority of the case the Reference System Introduction is perform trough the network adjustment from the coordinate’s variation method. This work presents these new concepts, describing a methodology of network adjustment and Assessing the accuracy of GPS networks using similarity transformation. This follow advantageous when introduce the Reference System simultaneously with the parameters estimate is the objective.