GPS antenna calibration at different stations

Abstract

The goal of this paper is to investigate the modelling of geodetic GPS antenna
phase center through the relative field calibration method. Two geodetic GPS antenna models were investigated. Field measurements were carried out at two
calibration pillars in order to estimate azimuth and elevation dependent phase
center variations. Significant differences between the modellings due to antenna
interchange between the pillars are rather evident and can be attributed to
different multipath conditions.