I'm having a hard time getting my head around the maths to locate a target in 3D given a number of known points (4 or more) and a value that indicates the signal strength (range 0–100).
I've looked at the simpler answer in the 2D case but I'm unsure how to generalise the idea of normalising the signal strengths for the 3D case. It might even be that this answer is too simple for my requirements. I know that in my case the signal strength is proportional to distance-2 but do not know the propagation constant.
I've also seen this question, but it's not quite what I'm after as I want to use the signal strengths from a larger number of nodes to improve the estimate.