Why is there no interstellar voyage in my country?Wuhan scientist deep space navigation brain hole open

The Yangtze River Daily Da Wuhan Client News (Reporter Zhou Yan Correspondent Yang Tingting) On August 30, my country's first Sun exploration science and technology test satellite "Xihe" exploration was officially released in Beijing. The solar speed measurement instrument "successfully completes the orbit verification. The new navigator developed by the Li Faquan team of the Institute of Precision Surveying Science and Technology Innovation of the Chinese Academy of Sciences was designed and manufactured in the world for the first time adopted the principle of "atomic frequency". The success "strengthens my country's original technology accumulation in the field of deep space detection."

The atomic frequency solar speed measuring navigator equipped with the space on the "羲 上".

Say goodbye to the earth, fly to deep space, how can high -speed flight aerospace be lost in the vast universe? It is one of the primary issues for aerospace people. Is there a deep space navigation method that is both accurate, autonomous, and can provide data in real time? Li Faquan, the person in charge of the "Frequency Frequency Sun Speed ​​Restimination" team, introduced that in the face of the sea of ​​stars, scientists need to open their brains. There are various deep -space independent navigation programs that show their magical powers, which examine the imagination of scientists.

"Xiehe Tanri", Li Faquan's team found inspiration from the "knot" of the atomic frequency and the sun. Yang Yong, the person in charge of the team's Shenzhen -Air Navigation project, talked about their experience of "not doing business" to find inspiration. The Li Faquan team began to study atomic frequency technology more than 20 years ago. It is a measurement technology that can use the atomic super fine and high -stabilization spectrum as the light frequency benchmark to measure and distinguish the frequency change of other objects. On July 22, 2009, the Yangtze River had a large solar eclipse. Wuhan could see, "We are thinking, can we combine the atomic frequency and full -food observation to measure the speed field of solar material movement." Taking this as an opportunity, from the sun to the earth's atmosphere, from the sun to the earth's turn speed, they measured all the way, realized (based on the atomic frequency mechanism) the earth's measurement of the solar speed. Since the relative speed of the earth and the sun can be measured, the speed of deep space aircraft can also be measured by the speed of the sun and used for deep space navigation. Soon, Yang Yong carried out a new deep -space navigation plan and experimental research based on atomic frequency -based speed measurement on this basis. "Simply put, this brain hole is to use things to do on the earth into space."

In April 2021, the atomic frequency solar navigator conducted an external speed measurement experiment.

In April 2021, the atoms' frequency sun navigator conducted a high -level speed measurement experiment in Yangbajing, Tibet.

A completely original idea comes to a completely practical navigator. There is no previous car to learn from, and there is no finished semi -finished product to rely on. It can only start from a screw and complete itself. Li Faquan said with a smile that the team continued to improve the "seven gourd baby" from the parts covered with a table. From the first generation of prototypes to the final fixed machine, it happened to have experienced seven generations. The key technologies such as frequency polarizing signal separation and solar speed measurement, the final setting machine is only one short boots box size.

The "Seven Vajrayana Gourd Baby" in Li Faquan's mouth, one baby to Liuwa is an improved verification machine, and the final Qiwa flew into space.

In 2017, the "Atomic Frequency Sun Speed ​​Termination Instrument" stood out from many deep -space navigation schemes and obtained the opportunity to test and verify on the "Hehe". From October 2021 to today, in the past year, according to the results released by the National Space Administration, the speed measurement accuracy of the rail detection is better than 2 meters/s. This also verifies the correctness of the new principle and the feasibility of new technologies.

At the press conference site, Yang Yong heard his navigator successfully verified in the orbit, and became one of the five worlds "first" created by the first batch of achievements of the "Xihe". Some studies are mainly based on the forefront of the world, but this job is not a tracking mode, which is different from all the previous navigation principles and navigation methods. "

【Edit: Wang Rongfei】

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