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Single-site indoor hybrid positioning method and system based on LOS identification

A hybrid positioning and positioning method technology, applied in the field of communication, can solve the problems of high equipment storage cost and long offline training time, and achieve the effects of high positioning accuracy, reduced complexity, and high recognition accuracy.

Active Publication Date: 2021-11-26
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the fingerprint-based positioning system also has the disadvantages of long offline training time and high requirements for equipment storage costs

Method used

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  • Single-site indoor hybrid positioning method and system based on LOS identification
  • Single-site indoor hybrid positioning method and system based on LOS identification
  • Single-site indoor hybrid positioning method and system based on LOS identification

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] In the description of the present invention, it should be understood that the terms "comprising" and "comprising" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, Presence or addition of wholes, steps, operations, elements, components and / or collections thereof.

[0060] It should also be understood that the terminology used in the descriptio...

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Abstract

The invention discloses a single-site indoor hybrid positioning method and system based on LOS identification, and the method comprises the steps: achieving the position estimation of data with an LOS path through employing the propagation time and propagation angle of a signal by employing a distance-based positioning method, carrying out the correction of the propagation time and propagation angle, and combining the corrected propagation time and propagation angle with the fixed position of the transmitter to estimate the position of the mobile device; estimating the position of a test sample in a test environment by using a fingerprint-based positioning method for the data without the LOS path; and combining the position estimation result with the LOS path data and the position estimation result without the LOS path data with the LOS identification result in the step S1 to carry out area correction so as to obtain a final positioning result. According to the invention, stable high-precision positioning is realized by using the positioning performance advantages of different positioning methods in different environments.

Description

technical field [0001] The invention belongs to the technical field of communications, and in particular relates to a single-site indoor hybrid positioning method and system based on LOS identification. Background technique [0002] With the rapid development of smart wireless terminals and wireless communication technologies, location-based services play an increasingly important role in life and are highly appreciated by consumers. However, in complex environments such as indoors or urban blocks, location-based services degrade service quality due to a sharp drop in positioning accuracy. People spend a long time indoors or in urban areas. In such areas, there is a strong demand for high-precision, low-latency, and high-reliability positioning technologies. [0003] The current positioning system mainly adopts the distance-based method, and a basic requirement of the distance-based method is that there is a direct path in the propagation process of the wireless signal. Be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/33H04W64/00H04B17/27
CPCH04W4/025H04W4/33H04B17/27Y02D30/70
Inventor 范建存张建雄
Owner XI AN JIAOTONG UNIV