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A navigation information filtering method increasing moving alignment precision

A technology for moving base alignment and navigation information, which is applied in the field of navigation information filtering to achieve accurate and efficient calculation, saving research and development costs and human resource costs, and good versatility.

Pending Publication Date: 2017-02-15
SHANGHAI INST OF ELECTROMECHANICAL ENG
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Problems solved by technology

[0004] The purpose of the present invention is to provide a navigation information filtering method that improves the alignment accuracy of the moving base, and solves the problem of how to obtain smooth and continuous navigation data for the aircraft when the shipboard platform is accompanied by pitch and roll. Problems with passing alignment information using

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  • A navigation information filtering method increasing moving alignment precision
  • A navigation information filtering method increasing moving alignment precision
  • A navigation information filtering method increasing moving alignment precision

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] Such as figure 1 As shown, the present invention provides a navigation information filtering method for improving the alignment accuracy of the moving base, including:

[0042] Step S1, the information interface combination receives the navigation data sent by the integrated navigation device;

[0043] In step S2, the navigation data is processed by ticking, limiting, and filtering, and outputting angle, angular velocity, and ship speed for use by other devices.

[0044] Preferably, the navigation data is divided into two categories, one is angle information, including heading angle, pitch angle, roll angle, using As an effective point count, the other type is speed information, including ship speed, using as its effec...

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Abstract

A navigation information filtering method increasing moving alignment precision is disclosed. The method includes receiving, by an information interface assembly, navigation data sent by a comprehensive navigation device, subjecting the navigation data to point elimination, limiting and filtering treatment, and outputting an angle, an angular velocity and a ship velocity. The method overcomes a problem of how to obtain smooth and continuous transfer alignment information used for aircrafts through processing high-frequency navigation data in a situation that a shipboard platform is accompanied with vertical and horizontal swing.

Description

technical field [0001] The invention relates to a navigation information filtering method for improving the alignment accuracy of a moving base. Background technique [0002] The inertial navigation system plays an irreplaceable role in modern high-tech warfare. How to improve its speed and accuracy is the core issue of precision strike in high-tech warfare. Among them, the launch reaction time of the guided weapon mainly depends on the initial alignment time of the guided weapon, and the precision strike capability mainly depends on the accuracy of the inertial navigation system. The carrier-borne aircraft is faced with the condition of a moving base. Due to the various disturbances caused by the movement of the base and the limitation of the accuracy of the inertial components, it is impossible to use the self-alignment method to perform high-precision initial alignment in a short time. In order to effectively solve the above problems, Kain proposed the principle of tra...

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Application Information

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IPC IPC(8): G01C21/16
CPCG01C21/16Y02T90/00
Inventor 杜思伟董帅君郑晟王磊
Owner SHANGHAI INST OF ELECTROMECHANICAL ENG
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