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The world's first Beidou 3 baseband chip released: not only "Chinese precision" but also "Chinese core"

via:雷锋网     time:2019/5/21 19:32:21     readed:426

(Photo: Wu Lin, vice president of Hezhong Zhuang Research and Development, introduced the "Tianqin II" chip / by Lei Feng)

This means that the Beidou No. 3 system, which is planned to achieve global coverage by 2020, already has the support of related supporting industries, and can be said to be a new breakthrough in the core technology of satellite navigation.

Wu Lin, vice president of research and development at Hezhong Zhuang, revealed at the scene that “Tianqin II” is a new generation of GNSS multi-mode multi-frequency high-precision baseband chips. It uses broadband GASS receiver processing technology. Compared with the previous generation, the most obvious improvement lies in The single chip realized support for the full constellation of the full constellation, from 24 to 31, adding Cygnus Swan anti-jamming technology.

(Figure: high-precision board Phantom and Vega / by Lei Feng network

Simply put, the high-precision products equipped with the "Tianqin II" will be able to receive all the navigation signals of the Beidou No.3 system in the future. In addition, the "Tianqin II" chip is also the "Chinese core" with completely independent intellectual property rights.

(Figure: Tianqin second generation chip real / Hezhong Shuangzhuang for the map)

Be a science here,The frequency in the satellite navigation chip is similar to intelligenceMobile phoneThe network system of the chip, and the satellite navigation system is equivalent to the communication carrier. The frequency of the chip support can be understood as the difference between the 3G and 4G and 5G.The more frequency points supported, the wider the signal bandwidth of the receiver, and the stronger the ability to receive and process navigation signals at the same time, enabling multi-mode high-precision positioning. In other words, the "Tianqin II" is equivalent to the realization,Support all network modes including other operators in the world, including Beidou.

Looking back at the rapid development history of Beidou, we can find that as one of the four members of GNSS (Global Navigation Satellite System), Beidou shoulders the responsibility of national strategy, from the cooperation between the first generation and the Galileo plan in Europe, to the second generation of independent self-research, and this year. From April to May, the 44th and 45th Beidou satellites were launched one after another. The Beidou navigation system not only has great significance in military defense, but also has become more and more widely used in the civilian field. Because of this, the company is relatively low-key, in addition to releasing major products, rarely appear in public.

(Beidou Navigation Museum / Hezhong Shuangzhuang for the picture)

But when it comes to the application of Beidou industrialization, the "China Precision" of this low-key company has to be mentioned again.

In 2015, Hezhong Shuangzhuang announced that the first domestic satellite-based enhanced service system “China Precision” was officially released to the world, achieving “centimeter-level positioning”. In 2017, “China Precision” provided services in the first Sino-Russian “Belt and Road” satellite navigation joint test. This year, it is the fourth year of "China Precision" commercial operation, and to a certain extent, led the development of China Star-based enhanced market.

For them, the battle of these nine years (5 years of research and development for 4 years), on the one hand, high investment and high risk, on the other hand, the strong demand of the national economy and the people's livelihood, and finally played a beautiful battle in this game. Looking back at the current Sino-US trade war, it has to be said that there is a posture of a precautionary brave man.

John F. Kennedy generously said in "We choose to land on the moon"

“We chose to land on the moon! We decided to land on the moon and realize more dreams in this decade, not because they are easy, but because they are difficult. Because this goal will help us to co-ordinate and measure our best energy and Technology, because this challenge is what we are not willing to postpone, we are determined to win, and other challenges are also true."

Beidou navigation and these "Chinese precision" and "China core" are also true in China.

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