Academician Wu Jianqi (first from right) guides scientific researchers in equipment testing in the microwave anechoic chamber of the 38th Institute of China Electronics Technology. Radar is known as "clairvoyance" and can detect and locate aircraft at long distances. "After the e

Academician Wu Jianqi (first from the right) guides scientific researchers to conduct equipment testing in the microwave anechoic chamber of China Electronics Technology Research Institute.

　 radar is known as the "clairvoyance" and can detect and locate aircraft at long distances. "After the emergence of stealth aircraft , radar could not detect it in time, and the 'clairvoyance' became blind." Wu Jianqi, academician of the Chinese Academy of Engineering, chief scientist of China Electronics Technology Group Corporation, and director of the Science and Technology Committee of the 38th Institute of China Electronics Technology, said: " Our job is to restore the sight of the "clairvoyance"! "

In 1991, the Gulf War broke out. For the first time, U.S. stealth aircraft have been put into actual combat on a large scale, destroying and paralyzing their defense systems and command systems without the adversaries being able to detect them, and following up with conventional forces for indiscriminate bombing. The performance of stealth aircraft in war has posed a huge challenge to scientific and technical personnel engaged in radar research.

At this time, Wu Jianqi had only been in the 38th Institute of China Electronics Technology for one year. As a young radar person, he actively applied for projects and was determined to conquer anti-stealth technology and protect national security. In 1992, he successfully obtained support from the key advance research project plan.

To make a stealth aircraft visible, you must first understand its design principles. Wu Jianqi discovered through research that stealth aircraft greatly reduce radar echoes by changing their shape. However, when the wavelength of the electromagnetic wave is close to the size of the aircraft, the impact of the aircraft's changing shape on the radar echo becomes very small, or even has almost no effect.

What electromagnetic waves are closer to the scale of airplanes? The answer is and ! As the name suggests, this is an electromagnetic wave with a wavelength close to or near the meter level. "The echo of the stealth aircraft increases in the meter wave band, so that we can obtain a relatively strong echo signal to detect the stealth aircraft." Wu Jianqi found the direction to break through the anti-stealth technology from the meter wave radar .

When Wu Jianqi started research on meter-wave radar, everyone was not optimistic about it because meter-wave radar had a large detection blind zone, poor ranging accuracy, and low resolution. It once became synonymous with backwardness. Wu Jianqi said: "We must let the meter-wave radar give full play to its advantages and overcome its shortcomings. These were global problems at the time."

20 years of dedicated research and 20 years of bold practice. Wu Jianqi led the team to work tirelessly, gradually exploring and forming China's unique anti-stealth advanced meter-wave radar theory, and establishing a basic data model and corresponding unique design methods. The anti-stealth meter-wave radar finally became equipment in 2011.

Having been in the radar field for 32 years, Wu Jianqi has now become a proper radar “expert”. The DBF system three-dimensional radar he participated in the development won the first prize of the National Science and Technology Progress Award, marking the first time that China's radar had caught up with the world's advanced level; he led the development of the sparse array comprehensive pulse aperture radar test system and the mobile meter-wave three-dimensional radar. The radar has won the second prize of the National Science and Technology Progress Award, filling the gap in my country's anti-stealth radar equipment, and its main indicators are world-leading.

"Now, the anti-stealth meter-wave radar has been equipped in batches, forming detection coverage in important directions around our country. After drills, its actual detection performance is consistent with our design indicators." Wu Jianqi said proudly.

On the vast land and ocean of the motherland, when we look up, anti-stealth radar, as a weapon of a great power, is guarding every inch of the sky. (Reporter Xu Guokang, Zhang Lili and Xu Hao’s photo report)

Wu Jianqi

　·Academician’s business card·

Wu Jianqi, born in Yibin, Sichuan in 1966, is an expert in the radar field, an academician of the Chinese Academy of Engineering, chief scientist of China Electronics Technology Group Corporation, and the Science and Technology Committee of the 38th Institute of Electronic Technology of China. director. He has long been focused on the theoretical research, key technology research and engineering development of meter-wave anti-stealth radar, and has presided over the successful development of my country's first meter-wave three-dimensional coordinate (3D) radar, the world's first meter-wave sparse array 4D radar and meter-wave search guidance radar, etc. Stealth equipment. He has won 1 first-class National Science and Technology Progress Award (ranked third) and 3 second-class awards (both ranked first), has been granted 15 authorized invention patents, and has published many monographs.Won the honors of National Advanced Worker , National Innovation Certificate, and National Outstanding Scientific and Technological Worker .

Academician Wu Jianqi learned about the research and development of independent controllable microwave chips at the Microwave Technology R&D Center of the 38th Institute of Electronic Technology of China.

Academician Wu Jianqi concentrates on solving microwave component packaging issues in the Microwave Integration Center of the 38th Institute of China Electronics Technology.

Academician Wu Jianqi (right) discusses advanced packaging technology with scientific researchers at the Microwave Center of the 38th Institute of Electronic Technology of China.

Determined to innovate, Wu Jianqi sticks to the front line of scientific research work in the 38 CETC institutes.