Another
GNSS simulation tool was developed within the BaiCES project (2001-2003)
in cooperation with the IfEN GmbH and the Astrium EADS GmbH as prime contractor,
financed by the BFS (Bayerische Forschungsstiftung). The main goal of the
development of a new GNSS simulator was to combine all the main aspects of
existing GNSS simulation tools of the three projects partners to a big simulation
tool dealing with all aspect in satellite navigation.
The so
called BaiCES simulator is based on the commercial simulation environment,
ML-Designer, from the Mission Level Design GmbH. This simulation infrastructure
enables the user to build up a simulation application graphically, by drag
and drop models from the model library into the simulation build up window
and connecting their in- and output ports. Each model represents a certain
partition of a GNSS System, like the satellite orbit, the satellite signal,
the receiver, the user environment (terrain data) or the positioning
algorithm.
A model
library was developed which consists mainly of the algorithms they implemented
in their existing GNSS simulation tools in the past.
The main
advantage of this approach is the enormous flexibility and transparency to
the user of this simulator. The model library can be extended at any time
to include new models or new research results in satellite navigation.
The model
library consist of at least more than hundred models to represent the different
partitions in GNSS navigation in different detail. It is up to the user to
choose the level of detail, depending on the desired simulation application,
for example system volume or end-to-end simulation.
A quite
new feature is the inclusion of real measurement data, weather data
or orbit data, to verify the simulation models and to come closer to
reality.
Point
of contact: Roland
Kaniuth
