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

[Moritz Lennert]

On 17/04/08 12:05, Peter Hopfgartner wrote:
> 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. 

I don't really understand what you are speaking about (i.e. am 
completely incompetent in this field), but would v.net.visibility be 
something for you ?

Moritz