Wifi Triangulation

Question

What would be the best way to triangulate a wireless network passively. Are there tools available? Algorithms? Libraries?

My goal would be to create a relative map o

Answer 1

You can't use the GPS technique because the timing is nothing like accurate enough. The best you can do is Trilateration based on the signal strength from each base station and assume that range is proportional to signal.
You will probably need to force a connection to each base station in turn in order to measure the signal strength.