Li Daren: Deliven to the field of remote sensing in surveying and mapping, realize technology self -reliance

The Yangtze River Daily Da Wuhan Client July 14th (Reporter Zhou Yan) At the Wuhan Science and Technology Innovation Conference today, Li Deren quickly stepped onto the stage and won the award of this year. Essence Li Daren said with emotion that Wuhan City was made into a domestic science and technology innovation center and a global scientific and technological innovation highland. Our science and technology workers in Han are full of confidence. We must adhere to our autonomy, independence, and security, and we must make this job to the extreme.

Rest in my family, blame

"We are teachers, are scientists, learned a good skill, and are optimistic about the direction of discipline development and the major needs of the country. We must grasp our mission and have a high standing. Look at the development of the discipline. It is necessary to see both high and accurate. "Professor Li Daren said in an interview.

For decades, he is both a scientist and a teacher. He has aimed at the major national needs with teams and students, undertook the major national scientific and technological tasks, and wrote the story of China ’s remote sensing and mapping stories based on the leapfrog development of science and technology in China and looking forward to the world.

In 1985, Li Daren, who received a doctorate degree from Stuttgart University, declined the invitation of the Foreign Research Institute and returned to China resolutely. He recalled: "Science is to serve the motherland. Returning to the country is inevitable and conscious. We have a big gap with foreign countries. I have to return home quickly. I returned to Wuhan Institute of Mission and Maama to start teaching. I wrote the lesson plan overseas overseas. "

After returning to China, Li Daren led the team to continue to carry out basic theory and major technological innovation, leading the development process of my country's surveying and mapping remote sensing industry from chasing to parallel to transcendence.

At the turn of the century, there are still obvious gaps between Chinese aerospace technology -satellite applications, deep space detection and spatial security. Western countries are also restricted to export advanced aerospace devices to China. At that time, the international situation of the establishment of the local observation satellite system was not urgent and not optimistic.

Since 2002, Li Daren has jointly wrote a consultation report with more than ten academicians, suggesting the development of China's high -resolution -to -ground observation system. In 2005, the high -resolution -to -ground observation system was established by major national projects. Li Deren has formed a team of more than a hundred people to host the "high score project". In the past 15 years, the "high score special" has completed the optical satellite to radar satellite, from the earth synchronous orbit satellite to the solar simultaneous orbit satellite. The full coverage of the X -band to the L -band is "complete", which basically meets the major needs of China's national defense construction, economic development and the lives of the people, and realizes that the surveying and mapping data in my country has been self -autonomous to freedom: my country's satellite remote sensing and its applications catch up to catch up with their applications. The advanced level of the world; the self -sufficiency rate of satellite data reached more than 85 % (before 2005, we basically bought foreign satellite data, which is expensive). It has reached about 1500PB, which is the country with the largest number of stocks in the world. The technology incubation of "high scores" also supports the new generation of national space infrastructure plans and promoted the development of the commercial aerospace industry. In 2020, the relevant research "Sky Delivery Data Highly Mediated Intelligent Processing Key Technology and Application" won the first prize of the National Science and Technology Progress Award.

The source of innovation is national needs

At present, Li Daren, who is in his 80s, is more like a strategic scientist in the field of observation to the ground. He proposed and leading the team to engage in the research on the ground observation satellite system into the ground observation brain -the guidance remote integrated Tianji information real -time service system (PNTRC). Related research will guide the remote satellite integration to form a system. Formed a brain, this brain can intelligently process the data perceived of various satellites to solve the formation of existing communication, navigation, and remote sensing satellite systems. question. Li Daren said that through the "spectrum", we can observe the trilogy of brain areas, regions, and global coverage of the ground, and we can realize the leap from the aerospace to the aerospace power.

This research that is stepping up is also facing 7 original key technologies that did not have at all needed to be resolved. Li Daren said: "We must adhere to independent innovation, lead the development, and organize multi -disciplinary experts to conduct collaborative innovation. One of the excellent academic style inherited by the generation and one generation of the surveying and mapping discipline of Wuhan University is: the theory is assured, the results are assured, the results are assured. The application is excellent. This reputation must be passed down. "

Speaking of innovation, Li Daren recalled the challenges that have been continuously encountered in the past decades, the card neck, and how to "use the wisdom of Chinese people, use our mathematics and process control methods, to achieve the world's number one". The process is the process of reading, thinking, innovation, and practice, and constantly working hard. That is to say, the source of innovation, one is the needs of the country, and the other is that you must understand the existing scientific research results at home and abroad. Things, we must work hard. "

Whether it is self -reliance from "0" to "1", or establishing a "Chinese own global observation system", it has led the fundamental change of information testing remote sensing. In order to survey the remote sensing power, Li Daren said in an interview, "One person must use his own ability to do more for the country. Combining his interests, strengths, and the needs of the country is exactly what I pursue."

【Edit: Zhao Ke】

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