PLAN ASW Capability
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Hendrik_2000
Lieutenant General
It is not published by SCMP but China ship research journal SCMP just quote them Understood that this is a research project and some years before they got a practical system ready. But it is part of multi-prong research in detecting submarines realizing that it is the biggest threat facing the Chinese fleet or Chinee landing party in Taiwan contingencies. Sooner or later they will find the holy grail of submarine detection
Hendrik_2000
Lieutenant General
More revelation about the new submarine detection technology from SCMP was published August 29 Apparently it is related to 6G technology. It is huge progress in submarine detection technology. It is small enough to be fitted into UAV maybe AB 500 or Z20 F heli. If they perfect this system they can put it on Corvette class ship upward
Published: 11:00pm, 29 Aug, 2023
An experimental Chinese terahertz device identified extremely small surface vibrations produced by a low-frequency sound source in the open sea. The developers said it would help pinpoint a submarine. Photo: Xinhua
China has tested the world’s first submarine-detecting device based on next-generation communication technology, according to researchers.
The terahertz device identified extremely small surface vibrations produced by a low-frequency sound source in the open sea, scientists involved in the experiment said.
These ripples were as tiny as 10 nanometres tall, well below the detection range of existing technology.
Tracking and analysing these waves can not only help find the submarine but also gather critical intelligence, such as noise signature or the submarine model, according to the researchers.
The technology “will have significant application potential in underwater vessel detection and other areas,” said the project team with the National University of Defence Technology. Their work was published on August 11 in the Journal of Radars, a Chinese-language peer-reviewed journal
Terahertz is a frequency range between microwave and infrared radiation. Terahertz technology has been proposed as a potential solution for achieving high data rates and low latency for the next generation of communication technology, or 6G.
Electromagnetic signals in this range not only carry a lot more information than existing communication methods but can collect information about the environment. Some airports in China, for instance, use terahertz screening devices to detect illegal items concealed under passenger’s clothes.
Generating powerful terahertz signals used to be difficult but thanks to an increasing investment in 6G in recent years, scientists in China and other countries have achieved breakthroughs that make mass application of the technology possible.
“A small unmanned aerial vehicle (UAV) platform has the advantage of good mobility, low cost and flexible deployment,” they said in the paper.
And it could work in concert with other submarine detection methods such as a magnetic anomaly detector (MAD), microwave radar or laser.
“As a supplement to existing detection methods, it can provide important information for the detection and identification of submarines,” they added.
The paper did not state when the experiment was conducted but said it was at an unspecified location off the northeastern city of Dalian in the Yellow Sea. At the time of the test, the weather was fair but breaking waves produced lots of bubbles, according to their paper.
The military scientists used an artificial sound source to simulate the noise emitted by a submarine. And to mimic drone flight, the submarine detector was carried by an extended arm of a research ship.
When a submarine is travelling at high speed, “it produces significant radiated noise that propagates to the water surface and excites surface vibration”, the researchers said.
But the disturbance is extremely weak by the time it reaches the surface. Separating it from the natural waves of the ocean was previously thought impossible.
In the test, the terahertz sensor picked up man-made ripples with amplitude ranging from 10 to 100 nanometres, depending on the sea conditions.
The team said the result was a miracle of both hardware and software.
The terahertz waves’ high frequency made it ultra-highly sensitive. The Chinese scientists say they have also developed the world’s first algorithm that can effectively identify nanometre-size ripples over the wobbling ocean.
The same technology could be used in submarine communication, they said.
Chinese scientists look to 6G to hunt submarines, testing device small enough to fit on drone
- Defence researchers say sensors can identify extremely small surface vibrations produced by a low-frequency sound source in the open sea
- UAV-mounted platform could work in concert with other submarine detection methods such as a magnetic anomaly detector (MAD), microwave radar or laser
Published: 11:00pm, 29 Aug, 2023
An experimental Chinese terahertz device identified extremely small surface vibrations produced by a low-frequency sound source in the open sea. The developers said it would help pinpoint a submarine. Photo: Xinhua
China has tested the world’s first submarine-detecting device based on next-generation communication technology, according to researchers.
The terahertz device identified extremely small surface vibrations produced by a low-frequency sound source in the open sea, scientists involved in the experiment said.
These ripples were as tiny as 10 nanometres tall, well below the detection range of existing technology.
Tracking and analysing these waves can not only help find the submarine but also gather critical intelligence, such as noise signature or the submarine model, according to the researchers.
The technology “will have significant application potential in underwater vessel detection and other areas,” said the project team with the National University of Defence Technology. Their work was published on August 11 in the Journal of Radars, a Chinese-language peer-reviewed journal
Terahertz is a frequency range between microwave and infrared radiation. Terahertz technology has been proposed as a potential solution for achieving high data rates and low latency for the next generation of communication technology, or 6G.
Electromagnetic signals in this range not only carry a lot more information than existing communication methods but can collect information about the environment. Some airports in China, for instance, use terahertz screening devices to detect illegal items concealed under passenger’s clothes.
Generating powerful terahertz signals used to be difficult but thanks to an increasing investment in 6G in recent years, scientists in China and other countries have achieved breakthroughs that make mass application of the technology possible.
“A small unmanned aerial vehicle (UAV) platform has the advantage of good mobility, low cost and flexible deployment,” they said in the paper.
And it could work in concert with other submarine detection methods such as a magnetic anomaly detector (MAD), microwave radar or laser.
“As a supplement to existing detection methods, it can provide important information for the detection and identification of submarines,” they added.
The paper did not state when the experiment was conducted but said it was at an unspecified location off the northeastern city of Dalian in the Yellow Sea. At the time of the test, the weather was fair but breaking waves produced lots of bubbles, according to their paper.
The military scientists used an artificial sound source to simulate the noise emitted by a submarine. And to mimic drone flight, the submarine detector was carried by an extended arm of a research ship.
When a submarine is travelling at high speed, “it produces significant radiated noise that propagates to the water surface and excites surface vibration”, the researchers said.
But the disturbance is extremely weak by the time it reaches the surface. Separating it from the natural waves of the ocean was previously thought impossible.
In the test, the terahertz sensor picked up man-made ripples with amplitude ranging from 10 to 100 nanometres, depending on the sea conditions.
The team said the result was a miracle of both hardware and software.
The terahertz waves’ high frequency made it ultra-highly sensitive. The Chinese scientists say they have also developed the world’s first algorithm that can effectively identify nanometre-size ripples over the wobbling ocean.
The same technology could be used in submarine communication, they said.
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Really? Posting the SCMP as a "source" and discussing its content as credible? If their naval news are of similar quality to what they post for air force related stuff I would better ignore them.
@Blitzo any thoughts on them on naval matters?
SCMP's authors are generally all not very competent, including Stephen Chen, who has a bad habit of looking at Chinese research and development and exaggerating how mature or viable they are as mission ready systems.
Just because there is early research and development which could be useful for XYZ operational role, doesn't mean it is actually able to be developed and operationalized. Thus, almost all of Stephen Chen's articles are basically hot air.
kwaigonegin
Colonel
You mean like the S3 Viking? Not to my knowledge.
I believe the Y8Qs has enough legs to cover almost all of PLAN's major area of operations in the forseeable future.
Perhaps in the future when they have more CATOBAR carriers and regularly venture far into other oceans we may see a carrier based ASW but at this point I don't believe anything like that is in the oven.
Honestly though I don't think there is an immediate need. Even when they become a 400 or 500 ship navy, I just don't see PLAN regularly globetrotting all over the world like the USN does due to their foreign policy.
There was a graphic from a magazine or something of KJ-600 possible variants like Cargo and ASW, but it wasn't anything official