Homogenisation of the networks of control points

Ein Vorschlag für die Homogenisierung des österreichischen Festpunktnetzes.
In: Österreichische Zeitschrift für Vermessung & Geoinformation, 92. Jahrgang, Heft 2 / 2004, S. 59 - 67
von J. Jansa und L. Augustin, Wien *

One of the imminent tasks of the Federal Office of Metrology and Surveying is the transformation of the current national reference system in one unique and homogeneous European reference frame, the ETRS89. Here an approach is presented based on the “Least Squares Interpolation” (often refered to as the “Linear Prediction”) which is able to perform this transformation by investing relatively little effort. As foundation GPS measured homogenisation vectors at the points of the high order triangulation network are used. The approach is described in detail and a test example in Vorarlberg demonstrates its usability as far as its practicability and accuracy requirements are concerned.

*This work was initiated by the ÖGK and discussed during several meetings.