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Absolute Kalibrierung von GNSS Antennen

Absolute GNSS Antenna Calibration - development of a concept

Robot for absolute field calibration of GNSS antennas.

The development of the absolute field calibration of GNSS antennae was funded by the Ministry of Education and Research (BMBF) and the German Aerospace Center (DLR) in a project  "Entwicklung und Erprobung eines Verfahrens zur hochpräzisen Kalibrierung von GPS-Antennenaufstellungen". Within a cooperation with Geo++ (Gesellschaft für satellitengestützte und navigatorische Technologien mbH) this method was developed.This method is distinguished by a real time process with a robot to determine elevation and azimutal depended phase center variations (PCV) of GNSS antennae with sub millimeter precision.

The Figure shows the GPS PCV pattern for the frequenccy L1 of a typical Leica AR25.R3 LEIT antenna (currently mounted at the reference station at IfE).

A very detailled overview of this method can be found in publications and on the following sides: