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Multi-source information fusion method and system, terminal equipment and storage medium

A multi-source information fusion and source information technology, applied in the field of systems, terminal equipment and storage media, and multi-source information fusion methods, can solve problems such as inability to meet positioning accuracy requirements, achieve the goal of suppressing the divergence of positioning errors and improving positioning accuracy Effect

Pending Publication Date: 2021-12-10
BEIJING INST OF SPACE LAUNCH TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] The traditional inertial positioning method cannot meet the positioning accuracy requirements during the long-term and large-scale maneuvering of the vehicle

Method used

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  • Multi-source information fusion method and system, terminal equipment and storage medium
  • Multi-source information fusion method and system, terminal equipment and storage medium
  • Multi-source information fusion method and system, terminal equipment and storage medium

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Embodiment Construction

[0035] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] After research, it is found that the traditional inertial positioning method cannot meet the positioning accuracy requirements during the long-term and large-scale maneuvering process of the vehicle. In the combat system, the satellite navigation and positioning system is vulnerable to interference and deception, so the combined positioning technology based on the fusion of multiple information sources appears. The combined positioning algorithm complements the advantages of multiple positioning information sources to form a set of highly redundant positioning and navigation algorithm...

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Abstract

The invention discloses a multi-source information fusion method and system, terminal equipment and a storage medium, and the method comprises the steps: obtaining a preset factor graph model, and determining a data transmission mode according to the factor graph model; obtaining a plurality of pieces of source information according to the data propagation mode, and inputting the plurality of pieces of source information into a preset system error model to obtain an error state quantity; and performing state estimation according to the error state quantity, and fusing the plurality of pieces of source information by adopting a sequential filter. According to the invention, the divergence of positioning errors is effectively inhibited, and the positioning precision is improved; and plug-and-play of the positioning information source is realized.

Description

technical field [0001] The present invention relates to the technical field of inertial navigation, in particular to a multi-source information fusion method, system, terminal equipment and storage medium. Background technique [0002] The traditional inertial positioning method cannot meet the positioning accuracy requirements during the long-term and large-scale maneuvering of the vehicle. In the combat system, the satellite navigation and positioning system is vulnerable to interference and deception, so the combined positioning technology based on the fusion of multiple information sources appears. The combined positioning algorithm complements the advantages of multiple positioning information sources to form a set of highly redundant positioning and navigation algorithms, which can improve the environmental adaptability and wartime survivability of combat systems. [0003] Therefore, the prior art still needs to be improved and improved. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G01C21/16G01C21/20
CPCG01C21/165G01C21/20
Inventor 张靖王盛王向东陈世业徐振贤彭惠李先慕余胜义王瑾焦晨阳
Owner BEIJING INST OF SPACE LAUNCH TECH