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US 2021/0239855 A1Published application
Navigation Enhancement Method and System
AssigneeBeijing Future Navigation Technology Co., Ltd
InventorXucheng Mu
Life of this patent
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Abstract
The present application provides a navigation augmentation method and system, the method includes: broadcasting, by satellites of a Low Earth Orbit (LEO) constellation, navigation direct signals and navigation augmentation information; performing, by a user receiver, precise positioning, speed measurement and timing according to the navigation direct signals of navigation satellites, the navigation direct signals of the LEO satellites and the navigation augmentation information broadcasted by the LEO satellites.
Claims11
A navigation augmentation method, comprising:
- Broadcasting, by Low Earth Orbit LEO satellites, navigation direct signals navigation augmentation information and precise orbits and clock biases of the Low Earth Orbit satellites;
- performing precise positioning, speed measurement and timing by a user receiver according to navigation direct signals of navigation satellites, and the navigation direct signals of the LEO satellites, the navigation augmentation information and the precise orbits and clock biases of the Low Earth Orbit satellites broadcasted by the LEO satellites.
A navigation augmentation system, comprising:
- a LEO constellation, which comprises multiple LEO satellites distributed on multiple orbital planes, and is configured to provide stable coverage of the world or specific service areas;
- a ground operation and control system, which is configured to perform business calculation and processing, and control and manage satellites and constellations;
- a user receiver, which is configured to receive navigation direct signals broadcasted respectively by the navigation satellites and the LEO satellites, as well as the navigation augmentation information broadcasted by the LEO satellites, and perform precise positioning, speed measurement and timing based on the navigation direct signals of the navigation satellites, the navigation direct signals of the LEO satellites and the navigation augmentation information broadcasted by the LEO satellites.
Dependencies are inferred from the claim text.