[GRASS-user] LOS, Fresnel Zones, Multi-Line wave propagtion and GHz communications

[Peter Hopfgartner]

Dear GRASS community,

I would like to simulate the strength of a signal emitted from an 
antenna and received by a receiver.

As a first approach r.los gives a good start. Anyway, more accurate 
results could be  obtained by  taking obstruction in the first Fresnel 
Zone into account. Finally, having a way to calculate the impact on 
indirect paths/reflections, should lead to a reasonably accurate signal 
strength map.

Did anybody work on some of these issues, possibly in combination with 
GRASS? Is there a good starting point for the calculation of the 
obstruction within the first Fresnel Zone. And the reflections?

Regards,

Peter Hopfgartner
R3 GIS
http://www.r3-gis.com