Working with Rural Projects (Pixel Databases)

Propagation of electromagnetic waves in areas with a low density of buildings depends mainly on the topography and the land usage (clutter). The vector data of the buildings must not be considered in such scenarios.

For predictions based on pixel databases the DEM data is mandatory. Therefore, the user must select a topographical database. WinProp's topographical databases describe the topographical elevation of all pixels within the area of interest. They are binary pixel matrices. The extensions of the databases are .tdb (if single database) or .tdi (if index databases).

Figure 1. Comparison between topographical databases in 3D (on the left) and 2D (to the right).