Ukrainians adopt new strategy to protect skies, it has proven remarkably effective

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At the start of Russia’s invasion, Ukraine’s prospects for defending its airspace looked dire. The country’s radar coverage was spotty even before its radar stations came under attack. Many drones and cruise missiles flew too low to be seen. But that has changed.
As The Economist reports, four days after the invasion began, a group of ambitious Ukrainian developers formed a unit called Technari and developed a system to detect and track Russian air attacks. It is an app and an artificial intelligence model that allows Ukrainian citizens to report objects in the sky with the click of a button.
It has proven remarkably effective. The Technari team hopes for even greater success as it begins to process the sounds of potential airborne threats picked up by microphone networks located across Ukraine.
"The company's work is a small part of a quiet but dramatic Ukrainian experiment in countering air attacks. Several other units already use microphone networks that transmit sounds to Ukrainian air defense operators. These wartime innovations have proven so successful that other countries may soon follow suit," the publication writes.
Microphone networks have made significant progress in the past two decades, particularly in protecting Western soldiers in Afghanistan and Iraq. But analyzing sound waves for air defense has long been considered impractical. Mary "Missy" Cummings, a former American fighter pilot, is skeptical of the technology, calling it "reading someone's palm."
Ukraine's experience has made a difference, says James Hecker, who commands U.S. Air Forces in Europe. He describes Ukraine's innovation in acoustic sensing as "extraordinary."
Compared with radar, Ukrainian microphone networks are cheaper and do not emit signals that Russian forces could detect. And while clever engineering can dramatically reduce an aircraft’s radar signature, moving through the air creates sound. Acoustic detection works best at low altitudes, where most combat drones fly. General Gecker believes the technology is now viable at about 10,000 feet, and radar can monitor altitude without ground clutter.
An example of a successful development was the Lviv startup Zvook, which placed high-quality microphones near the city. The resulting recordings were used to train software to identify acoustic signatures of threats, ranging from small drones to missiles and aircraft with a crew, without taking into account the sounds of civilian life.
Drones can be detected at a distance of up to 5 km. For cruise missiles, the range is about 7 km. To do this, Zvook developed curved "acoustic mirrors" half a meter in diameter that concentrate sound waves on microphones.
Zvook detections typically appear in the Army’s Delta computer program within 12 seconds. A much larger acoustic detection network has been developed by a secretive Ukrainian group called Sky Fortress. It consists of several thousand listening stations, with thousands more planned. While its initial listening stations recorded and processed audio using Android smartphones, the network, like Zvook, now uses special microphones and microcomputers. The data feeds into a Ukrainian command and control system known as Virage. Sky Fortress is largely funded by donations, an astonishing development for air defense.

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[DarkCriimes]

Ukrainians are so innovative. Mad respect to Ukraine. We stand united with you always 🇬🇧🇺🇦🇺🇦🇺🇦🇺🇦✊

[macklyn]

Ukraine will make a brilliant new member of NATO once Russia has been put back in their place. Stay strong!

[cacwgm]

The threat-reporting app integrated into radar and acoustic data is reminiscent of the UK's Chain Home in WWII.

[jpr]

Clint Eastwood. Heartbreak Ridge. "Improvise, adapt, and overcome.". The Ukrainian National Slogan.

[eastafrica]

Why explain your defence systems while you are still at war?

[josephspencer]

Terribly stilted, halting, awkward narration. Please find a different narrator.

[whitewolf]

Detroit city in the USA have been usd in


this technology was used for years., the Detroit Police use it to detect the location of gunfire in the city

[stevenbowman]

Amazing the twisted logic, make your own energy thats not "green" buy it from somebody else and use it exactly the same way and suddenly its "green" Crazy !!!