Reflections will pose a problem though. Two receivers of the same signal may not be from the same proximate source. One could from the original antenna the oth

Reflections will pose a problem though. Two receivers of the same signal may not be from the same proximate source. One could from the original antenna the other from a reflection. Both could be reflected but by different reflectors. Even if the proximate source was the same for both the receivers, triangulation might yield the location of a virtual image of the original source. BTW I am just going by geometry and may be way off because radiowaves behave quite differently compared to visible light. One might need effectively the inverse of beamforming to nail it.