Acoustic mapping app uses thousands of networked old Android phones to hunt Shahed drones — crowd-sourced microphone network spots small, low-RCS military targets
Publish Date: 2026-06-21 06:30:00
Source Domain: www.tomshardware.com
A Lithuanian startup developed an Android app that lets verified users monitor the general area for the acoustic signature of Shahed-type drones used by Russia to strike targets and report their approximate location. According to state broadcaster Lithuanian National Radio and Television, the app uses an embedded algorithm to isolate and analyze targets from environmental noise. It reports a possible detection on a public map. With the app running on enough devices, the system could determine the potential location and direction of these drones and warn both civilians and the military of an impending strike.
Shahed-type drones have been widely employed in Russia’s invasion of Ukraine, which is quite effective for its relatively low price compared to other, more advanced missile systems. Ukraine has been taking steps to counter this threat, including requiring users inside the country to register their Starlink units to avoid getting blocked because Russia has been using the service to guide its drones as late as last year. Other nations are experimenting with cost-effective countermeasures, too, including microwave drone swarm killers and man-portable anti-drone laser systems.
What makes these drones deadly is their price — because they’re so cheap, it’s easy for an enemy to launch them en masse and overwhelm defenses. However, if you can catch them far from their targets, they’re quite vulnerable (at least for the older propeller-driven models); even gunners armed with a shotgun or assault rifle seated inside a 50-year-old single-propeller trainer aircraft can reliably shoot them down.
Latest Videos From
The biggest issue for air defense systems is that these drones are quite small and made of lightweight materials, which gives them a relatively low radar cross-section (RCS). A Shahed-type drone usually measures around eight to 12 feet in length and has a wingspan of around eight feet. Although they could be detected by standard radar systems, their…
