Study: Chinese naval vessels could penetrate U.S. and allies' military radar systems

Chinese naval ships by is licensed under YouTube
YANTAI, CHINA—A peer-reviewed academic paper published publicly by the Chinese-language journal 'Radio Science and Technology' revealed claims from the Chinese Communist government that it has developed a system that acts as a countermeasure to American and allied radar systems equipped on warships and early warning aircraft to track cargo vessels at sea.

The Eurasian Times reported this development citing the South China Morning Post, a once esteemed Hong Kong publication accused of publishing CCP propaganda since Beijing's 2018 takeover of the Hong Kong government. 

According to The Times, the report from the Chinese academic journal claimed that a team from the Chinese Naval University (the People's Liberation Army Naval Aviation University) and Yantai University demonstrated that they could utilize hostile radar signals to detect and track vessels entering or leaving a port. The outlet stated that this action is a departure from the traditional use of Radar. Reportedly the physical dimensions of a radar signal could previously only be known by its sender or allies.

“The images were clear as day,” wrote Song Jie, a scientist at the PLA Naval Aviation University, per the SCMP. 

The team claimed, “Our system works well for slow-moving targets at sea." Adding, “It can track ships with ease.”

The researchers claimed that in an experiment at the port city of Yantai, they were able to use a receiving antenna built into a residential building "connected to an electromagnetic wave analyzer and an ordinary laptop for signal analysis," to successfully track all the commercial ships within 20 kilometers of the shoreline, providing the vessels courses and speeds.

The outlet wrote, "the Chinese scientists also believe that their work could contribute to electronic warfare capabilities for the Chinese military, suggesting applications in electronic surveillance, anti-radiation weaponry, ultra-low altitude penetration missions, and stealth technology."

Interesting Engineering analyzed the technology as "a way to "borrow" or "piggyback" radar signals from things like warships or ground-based emitters to locate and track cargo ships at sea." The website explained that the technology known as "Passive bistatic radar" or PBR which uses externally generated radar to track objects.

But Interesting Engineering noted, "Outside of the recent Chinese news, PBR systems are widely used by many of the world's armed forces, but their adoption and prevalence can vary widely depending on the country, the specific military needs, and the level of technological advancement."

American arms manufacturer Lockheed Martin has such a system dubbed "Silent Sentry," a passive radar system well known and relied upon for its ability to detect and track airborne targets.
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