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Non-line-of-sight identification and positioning method by using anchor point high-dimensional space coordinate information

A positioning method and coordinate information technology, which is applied in navigation, instrumentation, surveying and navigation, etc., can solve the problems of affecting positioning accuracy and increasing ranging error, and achieve the effect of improving positioning accuracy

Pending Publication Date: 2021-12-17
JILIN UNIV
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Problems solved by technology

[0003] However, due to the complexity of the structure and physical composition of indoor space or the obstruction of obstacles in harsh environments such as indoors, indoor positioning is affected by Non-Line-of-Sight (NLOS) propagation, which causes positioning signal The refraction, reflection, diffraction and scattering of the refraction, multipath effect will appear, which will lead to the increase of the ranging error, and then affect the positioning accuracy.

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  • Non-line-of-sight identification and positioning method by using anchor point high-dimensional space coordinate information
  • Non-line-of-sight identification and positioning method by using anchor point high-dimensional space coordinate information
  • Non-line-of-sight identification and positioning method by using anchor point high-dimensional space coordinate information

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[0052]In order to make the object, technical solution and advantages of the present invention clearer, the content of the present invention will be further described in detail below through examples and with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto. It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

[0053] In the N-dimensional space multilateration positioning m...

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Abstract

The invention provides a non-line-of-sight identification and positioning method by using anchor point high-dimensional space coordinate information. The method comprises the following steps of in an N-dimensional space multilateral measurement method positioning model, expanding N-dimensional coordinates of the anchor point into N + 1-dimensional coordinates, solving the N + 1-dimensional coordinates, and measuring an error of non-line-of-sight measurement by using the N + 1-dimensional coordinates; and carrying out the non-line-of-sight identification and positioning by using the high-dimensional space coordinate information of the anchor point, and optimizing the positioning result of the to-be-positioned point. The method is suitable for two-dimensional space positioning, three-dimensional space positioning and even N-dimensional space positioning.

Description

technical field [0001] The invention relates to a non-line-of-sight identification and positioning method, in particular to a non-line-of-sight identification and positioning method using anchor point high-dimensional space coordinate information. Background technique [0002] With the development of technologies such as the Internet of Things, positioning technology has received more and more attention, and has broad application prospects in medical care, home furnishing, factories, logistics, etc. At present, indoor positioning has been studied for many years. Based on various technical means such as distance measurement technology, SLAM technology, inertial navigation technology, and fingerprint positioning technology, researchers have analyzed Time of Arrival (ToA), Time Difference of Arrival (Time Difference Many achievements have been made in the research on positioning methods such as of Arrival (TDoA), Angle of Arrival (AoA), and fingerprint positioning. [0003] Ho...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00
CPCG01C21/00
Inventor 孙大洋韩双雪李红阳王保松
Owner JILIN UNIV
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