Home » my country’s Beidou-3 global system has provided 7 kinds of services, the world’s leading performance_china satellite

my country’s Beidou-3 global system has provided 7 kinds of services, the world’s leading performance_china satellite

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Original title: my country’s Beidou-3 global system has provided 7 kinds of services, the world‘s leading performance

“Currently, the Beidou-3 global system provides seven services. Since it was officially completed and opened in July 2020, it has continued to operate stably and has the world‘s leading service performance.” At the press conference of the Information Office of the Hunan Provincial Government on September 8, China Chen Gucang, deputy director of the satellite navigation system management office, introduced.

The seven services include:

Positioning navigation timing service. The global real-time positioning accuracy is better than 2.5 meters in the horizontal direction and 5.0 meters in the vertical direction; the speed measurement accuracy is better than 0.2 meters per second, and the timing accuracy is better than 20 nanoseconds.

Global short message service. It provides trial services for global users through 14 MEO satellites. The maximum single message length is 560 bits and about 40 Chinese characters.

International search and rescue service. Six MEO satellites are equipped with search and rescue payloads, and on the basis of complying with international standards, they provide Beidou characteristic B2b return link confirmation function, and provide distress alert services for global users.

Regional short message service. The maximum single message length is 14,000 bits and about 1,000 Chinese characters. Smart phones with regional short message functions will enter the market by the end of this year.

Precision single point positioning service. The precision single-point positioning signal is broadcast through 3 GEO satellites, and the positioning accuracy is better than 20 cm in the horizontal direction and 35 cm in elevation.

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Star-based enhanced services. Supports two enhanced service modes, single-frequency and dual-frequency multi-constellation, to meet ICAO technical verification requirements. At present, the satellite-based augmentation system service platform has been basically completed, and trial operation services are provided to high-integrity users such as civil aviation, maritime affairs, and railways.

Foundation enhancement service. Framework network reference stations and regional network reference stations have been built throughout China to provide real-time centimeter-level and post-millimeter-level positioning enhancement services for industry and mass users.

Chen Gucang said that the satellite-based enhanced system service platform has been basically completed, and it will provide trial operation services to civil aviation, maritime, railway and other high-integrity users; ground-based enhancement services have built framework network reference stations and regional network reference stations throughout China , Provide real-time centimeter-level and post-millimeter-level positioning enhancement services for industry and mass users.

At present, the Beidou system has built an advanced and complete operation management system, and ground staff have continuous operation control and condition monitoring for 24 hours to ensure the stable operation of the system. While ensuring the stable operation of the system, according to the service conditions of the satellites in orbit, the functional performance of the backup satellites has been optimized simultaneously, the development and production of the backup satellites have been started, and the launch will be selected according to the needs.

Continuously improve the basic product spectrum of Beidou. Chen Gucang said that on the basis of the preliminary research, the follow-up combination of high-precision, anti-interference, popularization and other application requirements will further improve the basic product spectrum of Beidou, such as chips, modules, and boards, and form a full range of shelf products to make Beidou products useful and effective. use. At present, the national satellite navigation legislation is being stepped up, and the “Satellite Navigation Regulations” are issued to standardize national satellite navigation activities and promote the healthy and sustained high-quality development of Beidou applications and industries.

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It is reported that my country will continue to promote the international development of Beidou. Combining with the “Belt and Road” construction plan, continue to promote multilateral and bilateral cooperation and exchanges between China and Russia, China, Arab States, China and Africa, and China and Brazil, and continue to expand the circle of friends in Beidou applications; Ride by car, continue to promote Beidou to go global, and continue to promote the large-scale application and international development of Beidou.Return to Sohu to see more

Editor:

Disclaimer: The opinions of this article only represent the author himself. Sohu is an information publishing platform. Sohu only provides information storage space services.

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