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Global navigation satellite positioning method based on intelligent metasurface

A technology of global navigation satellites and navigation satellites, applied in the field of global navigation satellite positioning based on intelligent metasurfaces, can solve problems such as inability to locate and block navigation signals, and achieve the effects of low cost, expanded coverage, and convenient deployment

Pending Publication Date: 2022-08-09
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a global satellite positioning method based on intelligent metasurface to solve the problem that the navigation signal is blocked and cannot be positioned in a complex environment

Method used

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  • Global navigation satellite positioning method based on intelligent metasurface
  • Global navigation satellite positioning method based on intelligent metasurface
  • Global navigation satellite positioning method based on intelligent metasurface

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Embodiment Construction

[0036] The invention is a navigation satellite signal enhancement method based on the reflection characteristic of the intelligent metasurface array. By controlling the intelligent metasurface array, the direction, amplitude and phase of the reflected signal are adjusted to expand the coverage of the navigation satellite signal and enhance the navigation satellite signal. The present invention also provides a method for obtaining the user's position by using the least squares method.

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] like figure 1 As shown, the global navigation satellite positioning system based on intelligent metasurface includes user user, intelligent metasurface array RIS array, satellite s 1 , s 2 , s 3 and s 4 . satellites 4 and user user is blocked by buildings, in user user and satellite s 4The intelligent metasurface array RIS array is deployed in the middle. The intell...

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Abstract

The invention provides a global navigation satellite positioning method based on an intelligent metasurface, and relates to the technical field of satellite positioning. According to the invention, the intelligent metasurface is used for changing the transmission direction of the navigation signal and adjusting the phase of the signal, so that the shielded navigation satellite signal achieves the signal enhancement effect at the user, and a method for calculating and obtaining the position of the user by using the least square method is provided. The intelligent metasurface array is convenient to deploy and low in cost, compared with a traditional relay, noise cannot be amplified, a new thought is provided for solving the positioning problem in a complex environment, and the coverage range of a global satellite positioning system can be remarkably expanded.

Description

technical field [0001] The invention relates to the technical field of satellite positioning, in particular to a global navigation satellite positioning method based on an intelligent metasurface. Background technique [0002] The Global Navigation Satellite System (GNSS) includes all global navigation systems as well as regional and wide-area augmentation systems for individual regions. GNSS is widely used in various fields for its all-weather, high-precision positioning and timing services. my country is vigorously developing and building the Beidou satellite navigation system, striving to build a world-class satellite navigation system, to meet the needs of national security and economic and social development, and to provide continuous, stable and reliable services to global users. [0003] In 2020, the 6G white paper released globally requires indoor positioning accuracy to reach 10cm and outdoor positioning accuracy to reach 1m. GNSS solves the positioning problem in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/40G01S19/42
CPCG01S19/40G01S19/42Y02D30/70
Inventor 侯天为赵起超李洁龚文飞王俊孙昕宋政育
Owner BEIJING JIAOTONG UNIV