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Ukraine Develops Electronic Warfare System That Disrupts “Unstoppable” Russian Glide Bombs
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![Ivan_khomenko]( "Ivan Khomenko")
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Ukraine has developed an advanced electronic warfare (EW) system known as “Lima” that can interfere with the navigation of Russian glide bombs equipped with the Universal Planning and Correction Module (UMPK) according to The Economist on April 6.
The publication cites former German Defense Ministry official Nico Lange.
Lange stated that Ukrainian specialists have created a system capable of disrupting the satellite navigation used by Russian aerial bombs, significantly reducing their accuracy.
He described the development as a breakthrough in electronic warfare, noting that current Ukrainian systems deployed on the front line outperform both Russian and Western equivalents.
Unlike traditional EW systems that rely solely on radio jamming, “Lima” reportedly uses a combination of jamming, spoofing, and cyber interference targeting the bomb’s navigation receiver.
According to its manufacturer, the system employs digital suppression methods to affect the bomb’s guidance.
Russian UMPK-equipped bombs rely on a dual navigation system: inertial guidance combined with satellite-based correction. In the event of signal loss, the bomb continues its trajectory based solely on inertial data, which leads to growing inaccuracy over time.
For comparison, the US Joint Direct Attack Munition (JDAM) has a circular error probable (CEP) of 1 to 5 meters when guided by GPS. Without satellite navigation, the JDAM’s CEP increases to around 30 meters after 100 seconds of flight.
Similar dynamics apply to Russian bombs. The absence of GPS correction can cause deviations of up to 50–100 meters depending on flight duration. Reports from pro-Russian sources have also acknowledged reduced accuracy, attributing this to widespread Ukrainian EW systems deployed along probable flight paths.
Open-source monitoring channels associated with the Ukrainian military have noted that in recent months, Russian guided bombs, including those used against Zaporizhzhia, frequently fall short of their intended targets.
Many KAB bombs now reportedly impact areas 10–15 kilometers from the city. It is believed that once the satellite connection is lost, the bombs fail to detonate due to not reaching their programmed target coordinates.
However, this type of EW-based disruption remains inconsistent closer to the front lines.
According to recent reports, the settlement of Malokaterynivka, located approximately 15 kilometers south of Zaporizhzhia, sustained significant damage from a recent wave of glide bomb attacks.
Earlier in March, The Moscow Times reported that Russian glide bomb attacks had significantly decreased—not due to Western long-range strikes, but likely because Ukrainian forces had found ways to disrupt their guidance.
While once deemed “unjammable,” these bombs are now reportedly being thrown off course by Ukrainian electronic warfare systems, including F-16-enabled jamming. Russian sources have acknowledged the issue, with one military pilot claiming that “all satellite-guided correction systems have checked out.”
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