Vegetation and Time-Variant Objects

To model the influence of trees, parks on the wave propagation, vegetation blocks can be defined. When computing a prediction in ProMan, the vegetation blocks are considered. Vegetation blocks are characterised by two properties:
  • The additional loss of pixels in vegetation blocks specifies an offset to the path loss predicted inside vegetation blocks.
  • The additional attenuation of rays in the vegetation describes the leakage of ray energy due to scattering effects while passing through vegetation blocks.

Figure 1. Urban database with vegetation objects.

Similar to material properties of buildings, different properties can be assigned to the vegetation blocks. The handling is identical to the handling of normal building object properties. The only difference is that a different dialog comes up:

Figure 2. The Frequency Dependent Material Properties dialog.