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Principle
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A polygonal cylinder around the walls of the indoor database is
automatically determined which includes all indoor walls (see figure).
- The material properties of this cylinder can be
defined by the user and are used in the urban propagation models
- Urban propagation models consider only the
cylinder.
- Indoor propagation models consider only the
walls inside the cylinder.
- The cylinder is transparent for the indoor
models (rays are transmitting the cylinder without any attenuation) and
the cylinder is not considered (for reflection or diffraction) during
the computation of the indoor prediction
- The cylinder itself represents the interface
between the urban and the indoor models: All rays reaching the cylinder
are passed between the different propagation models (from urban to
indoor and vice versa). This can be done multiple times during a
propagation run (rays penetrating the building and leaving it again...)
- Different resolutions can be defined inside and
outside the cylinder
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Schematic
figure of the shape
Adaptive resolution
guarantees
the best resolution
for each environment.
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Databases
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The urban databases and indoor databases of the
well-known urban and indoor propagation models can be used. No special
databases are required.
The only task for the user: Import the indoor building database (you
would use for the indoor propagation model) with WallMan into the urban
building database. All other tasks are automatically handled by WinProp.
The
number of CNP buildings to be imported into the urban database is not
limited by WinProp. You can add as many CNP buildings as you want
(perhaps only the RAM or hard disk space might limit the total
number..).
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Combined
urban/indoor database.
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Supported
Propagation Models
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The following propagation models are supported:
Click
on the corresponding links to get more information about the
propagation models.
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Sample
Predictions
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Some sample predicitons for the Urban/Indoor Combined Network Modules
are shown below. Please click on the images to enlarge them.
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Transmitter located on a neighbour building
of the CNP building.
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Transmitter located on a neighbour building
of the CNP building.
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Transmitter is located inside the CNP
building.
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Transmitter located on a neighbour building
of the CNP building.
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