Systems planners currently have a range of fast and efficient software
tools available to them. These tools can predict how signals will propagate
through an urban environment, for example by calculating the strength
of signals reflected from obstacles such as trees, buildings and terrain.
RCRU has developed several of these tools, including parabolic equation
methods, current marching techniques and ray-trace algorithms.
For signals transmitted inside buildings, all of these tools need to
know the electrical properties of the buildings' materials to be able
to predict how radiowaves will behave inside them. These electrical properties
are well known for many hundreds of materials, but building materials
have not been investigated as thoroughly.
The project team will measure the dielectric constants for many of these
building materials at a range of different frequencies. These measurements
will be invaluable for modelling how radio signals propagate through buildings
of all types.
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