Michael Peck
“Acoustic rainbows” sound psychedelic. But the idea is no acid trip: By dispersing sound waves, noisy objects can actually be made silent.
That’s why U.S. Special Operations Command is seeking acoustic rainbow emitters, or ARE, for its drones, according to a SOCOM Small Business Innovation Research solicitation.
“The ARE would provide a means to redirect the acoustic signature of a UAS and change the frequencies of the acoustic signature,” notes the solicitation, which closes March 25.
Though tactical drones can be small and hard to spot, the noise of their propellers can warn potential targets and put the drone itself at risk to hostile fire. “Acoustic sensors are becoming more prolific on the battlefield,” SOCOM noted.
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