
1) Acoustic measurement
Found on
https://www.crosswordclues.com/clue/beamforming

Beamforming or spatial filtering is a signal processing technique used in sensor arrays for directional signal transmission or reception. This is achieved by combining elements in a phased array in such a way that signals at particular angles experience constructive interference while others experience destructive interference. Beamforming can be ...
Found on
http://en.wikipedia.org/wiki/Beamforming
No exact match found.