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| PCV Calibration of GPS Antennas Absolute PCV Field Calibration Discussion of Absolute PCV Absolute PCV Calibration of AOAD/M_T Absolute PCV Results of AOAD/M_T Summary Publications (including pdf-downloads) |
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| We
intend to fill a gap with this publication containing the absolute PCV results
of an AOAD/M_T choke ring antenna. The development of the Absolute Field
Calibration of Antenna PCV at IfE
and Geo++® reached a point, where
the calibration has become a matured and highly precise procedure. With the
real-time approach and the automation using a calibrated robot even azimuthal
PCV can be resolved very reliably. The missing absolute information of GPS antenna PCV is now accessible for the interested GPS user. Other groups are invited to verify these results. Results from relative field calibrations can be transformed into absolute PCV. From our side of view and based on our experiences, an individual complete absolute calibration should be prefered within precise applications (e.g. reference station networks, engineering applications, precise GPS height determination ...) due to the high resolution (azimuthal PCV, down to the antenna horizon). There are several antenna types with a magnitude of azimuthal PCV, which cannot be neglected. The AOAD/M_T type has rather small horizontal variations. The correctness and the effects of absolute PCV have been shown in our verifications. The separation of the absolute PCV antenna effect was succesful. A next and future step should be the careful investigation of the other error sources, which are all correlated and have an integral effect (e.g. satellite antenna, troposphere ...). |
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| last change
25.02.2008 by webmaster Institute of Geodesy |
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