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Transmission method and device for GBAS navigation message

A technology of navigation message and transmission method, which is applied in the field of satellite navigation and can solve problems such as not being able to meet the requirements of the GBAS system

Inactive Publication Date: 2018-01-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a GBAS navigation message transmission method and device, which is used to solve the technical problem that the existing technology cannot meet the needs of future multi-constellation or multi-frequency GBAS systems

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  • Transmission method and device for GBAS navigation message
  • Transmission method and device for GBAS navigation message
  • Transmission method and device for GBAS navigation message

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] figure 2 It is a schematic flowchart of Embodiment 1 of the method for transmitting navigation message provided by the present invention. like figure 2 As shown, the method of this embodiment may include:

[0028] Step 201, the ground equipment receives the GNSS signal of the global navigation satellite system;

[0029] Step 202, the ...

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Abstract

The embodiments of the invention provide a transmission method and device for a GBAS (Ground-Based Augmentation System) navigation message. The method comprises: ground equipment receives a global navigation satellite system (GNSS) signal; the ground equipment determines a very high frequency (VHF) data broadcast (VDB) message according to the GNSS signal; the VDB message comprises ranging sourceidentifiers and support constellation information; the ranging source identifiers comprise a ranging source identifier of the Beidou satellite and a ranging source identifier of the Galileo satellite;the ranging source identifiers are used for indicating the numbers of the satellites; the support constellation information is used for indicating the supported constellation type; and the ground equipment sends the VDB message to onboard equipment. By adopting the method, the updated VDB message can support GNSS signals of multiple stars including Beidou and multiple frequencies.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of satellite navigation, in particular to a method and device for transmitting GBAS navigation text. Background technique [0002] Global Navigation Satellite System (GNSS for short) technology can provide users all over the world with stable and accurate location information, and has been widely used in the aviation field. The navigation performance requirements of users in the process of using GNSS mainly include: accuracy, integrity, continuity and availability. The use of differential technology can effectively improve the performance of navigation, and the Ground-Based Augmentation System (GBAS for short) is a typical differential system. like figure 1 As shown, the ground equipment of the GBAS ground subsystem receives the GNSS signal, calculates the differential information, and sends the differential information to the airborne equipment of the airborne subsystem through a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/03
Inventor 王志鹏朱衍波柳源
Owner BEIHANG UNIV
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