A system of nearly 10,000 acoustic sensors deployed in Ukraine to detect Russian attack drones has sparked interest from Romania, Germany and the United States, The Warzone reports on July 24.
According to legend, the Ukrainian-developed automatic acoustic homing network for low-flying objects proved so effective that samples of the sensor equipment were delivered to Ramstein Air Base in Germany for testing and evaluation.
“The Ukrainians have deployed around 9,500 modules across the country and now receive very precise information about the direction-finding drones, which is collected on a central computer and sent to mobile fire teams on iPads in the form of flight paths of these unmanned aerial vehicles.” said James Hecker, the US general who heads the US Air Forces in Europe and Africa (USAFE and AFAFRICA) and NATO’s Allied Air Command. “We are now installing these sensors around Ramstein and making sure that this works. We received another report from the Romanians, they placed sensors around one of their test sites and we came to the same conclusion: this works.”
According to Hecker, the cost of an acoustic module is approximately $400 to $500, which, together with mobile firing groups, is much cheaper compared to Patriot missiles. “Solving the problem of detecting and defeating incoming drones in a country the size of Texas.”
Sean Gainey, head of the U.S. Army Space Command, which took over the missile defense system in 2023, said the U.S. should integrate this low-cost acoustic sensor network developed by Ukraine to detect air threats into its own air defense systems. Gainey, however, did not specify how he sees that integration or what territories — in the United States or elsewhere — such a system should cover.
According to the editors of War Zone, the United States itself requires a perimeter of acoustic sensors along its own borders to detect drones and cruise missiles.
Source: Rossa Primavera

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