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Method and device for navigation and positioning

A technology of navigation and positioning and location information, applied in the field of navigation and positioning

Active Publication Date: 2021-11-19
SHANGHAI HAIJI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Embodiments of the present invention provide a method and device for navigation and positioning, which are used to solve the problem of how to realize high-precision combined navigation and positioning with high reliability and high availability

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  • Method and device for navigation and positioning
  • Method and device for navigation and positioning
  • Method and device for navigation and positioning

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Embodiment Construction

[0068] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention. To illustrate, rather than limit, the technical solutions of the present invention, the embodiments of the present invention and the technical features in the embodiments may be combined without conflict.

[0069] First of all, some terms used in this application are explained in order to make those skilled in the art understand.

[0070] Pseudo-range: In the process of satellite positioning, the pseudo-random code broadcast by the satellite and the related technology of the receiver antenna copy code are used to measure the distance between the ground receive...

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Abstract

The embodiment of the present invention discloses a method and device for navigation and positioning. The method includes: determining N carrier phase differences between epochs of the receiver antenna through the carrier phases of N satellites obtained at different times by the receiver antenna, The motion information of the receiver antenna is acquired by the sensor of the receiver antenna, and the first position information of the receiver antenna is determined according to N differences of carrier phase between epochs and the motion information. The present invention combines the carrier phase difference between epochs of the receiver antenna with the motion information of the receiver antenna acquired by the sensor, without relying on external reference stations or expensive equipment, and performs combined positioning with the help of millimeter-level carrier phase observations. The accuracy of integrated navigation and positioning can be steadily improved, and the reliability and usability of navigation and positioning are improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for navigation and positioning. Background technique [0002] In recent years, with the completion of the four Global Navigation Satellite Systems (GNSS), the coverage of GNSS signals has become wider and wider, and the signal accuracy has become higher and higher. Compatibility and interaction between different constellation satellite signals The operation can effectively improve the observed geometric structure of the GNSS terminal, improve the signal availability, and help improve the positioning accuracy and stability of the user. However, the simple satellite navigation positioning technology cannot solve the problem of satellite signal loss or detection of satellite signals. The problem of navigation and positioning, and the accuracy of navigation and positioning will decrease when the number of available satellites decreases, so the integ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/49G01C21/16
CPCG01C21/165G01S19/49
Inventor 姚文平刘欢陆赛赛韩晓坤吉青
Owner SHANGHAI HAIJI INFORMATION TECH