Support-free low-orbit navigation enhancement system and method based on satellite-based enhancement service

Abstract

The invention relates to a support-free low-orbit navigation enhancement system and method based on a satellite-based enhancement service. The support-free low-orbit navigation enhancement system comprises a GNSS navigation satellite, a GNSS satellite-based enhancement satellite, a low-orbit navigation enhancement satellite and a ground receiving terminal, according to the invention, a support-free low-orbit navigation enhancement system with autonomous operation capability and autonomous navigation positioning service capability is constructed based on the satellite-based enhancement service, so that the problem that the existing low-orbit navigation enhancement system excessively depends on a ground control center, satellite uplink and downlink links and inter-satellite links is solved; meanwhile, the system and the method designed by the invention do not involve satellite uplink and downlink and inter-satellite link data transmission, and can further solve the problem of poor real-time performance of the existing low-orbit navigation enhancement system.

Description

technical field [0001] The invention belongs to the field of satellite navigation, and in particular relates to a supportless low-orbit navigation enhancement system and method. Background technique [0002] The American Global Positioning System (GPS), developed in the 1990s, has completely changed the way of modern warfare, and has also profoundly influenced and changed the production and life of human society. In the second decade of the 21st century, with the modernization of Russia's GLONASS, the opening and operation of China's Beidou-3 BDS-3 system, and the European Union's Galileo GALILEO system entering the FOC stage of full-featured operation, the current four global satellite navigation and positioning systems GNSS It has been able to provide meter-level navigation and positioning services for global users in open scenarios. However, in some fields, such as geodetic surveying, marine exploration, deformation monitoring, etc., they all put forward real-time centim...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, the present invention builds a non-reliant low-orbit navigation augmentation system and method with autonomous operation capabilities and autonomous navigation and positioning service capabilities based on satellite-based augmentation services, which solves the problem of The existing low-orbit navigation augmentation system relies too much on the ground control center, satellite uplink and downlink, and inter-satellite link. At the same time, the system and method designed by the present invention do not involve satellite uplink and downlink and inter-satellite link data transmission. It can further solve the problem of poor real-time performance of the existing low-orbit navigation augmentation system

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