Spiegel, D.; Lu, D.; Schnieder, E.:
Introduction of a new quantity for the stochastic behavior quantification of GNSS receivers.
Proceeding of the European Navigation Conference (ENC), Helsinki, Finnland, Mai/Juni 2016. 2016 European Navigation Conference.
For GNSS system manufacturers and system integrators
dealing with safety critical applications it is essential
to determine the most suitable receiver for their specific applications.
Hitherto, when GNSS localisation measurements are
performed they are tested under real application conditions or
by means of simulators. Astonishingly, receivers of the same type
with the same software settings and provided with the same input
signals calculate different location outputs. Reasons for that are
a probabilistic phase lock loop process, different receiver clock
offsets and many more. This behaviour is a potential hazard and
has to be investigated and analysed. To create a specific characteristic
for this phenomenon this paper starts with the definition
of the repeatability standard deviation as a new quantity for
describing the GNSS receiver key performance characteristics.
Afterwards, a test set up together with the classification of
different scenarios, and the acquisition of measurement data for
the repeatability performance calculation is described. Lastly,
the measurement data sets are analysed and the repeatability
performance is calculated and discussed.