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Millimeter wave-based positioning information acquisition method and system

A technology for positioning information and acquisition methods, which is applied in the field of acquisition of positioning information based on millimeter waves, can solve the problems of low positioning accuracy, inaccurate positioning information, and insufficient positioning of accurate positions, and achieve improved positioning accuracy and accurate detection technology Effect

Active Publication Date: 2021-03-26
SHENZHEN RONGTENG SCI & TECH CO LTD
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Problems solved by technology

[0006] In view of the above technical problems, the embodiments of the present invention provide a method and system for obtaining positioning information based on millimeter waves, which can solve the problem that the obtained positioning information in the existing positioning technology is not accurate enough to locate the exact position of the target, and the positioning accuracy low technical issues

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  • Millimeter wave-based positioning information acquisition method and system
  • Millimeter wave-based positioning information acquisition method and system

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Embodiment Construction

[0044] 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 only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0045] In the fifth-generation mobile communication network, we can apply mmWave wave technology to solve this problem. mmWave refers to millimeter wave, and now China's 5G technology working frequency band is not millimeter wave technology in sub-6GHz. But when the operating frequency is greater than 30GHz, it is operating in the millimeter wave frequency band. mmWave has a huge bandwidth, which is beneficial to TOA detection. The frequency range of mmWave is generally 26.5-...

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Abstract

The invention discloses a millimeter wave-based positioning information acquisition method and system. The method comprises the steps of receiving a millimeter wave positioning signal through a multi-antenna array; amplifying and down-converting the millimeter wave positioning signal received by each antenna to generate a baseband signal; filtering and sampling the baseband signal, and performingTOA estimation on the sampled baseband signal to generate a TOA estimation value corresponding to each antenna; obtaining an antenna with the minimum TOA estimated value in the multi-antenna array, and recording the antenna as a target antenna; carrying out the sampling and frequency reduction processing on the millimeter wave positioning signals received by the target antenna, analyzing the positioning signals after frequency reduction, and generating an AOA estimated value; and generating positioning information according to the TOA estimated value and the AOA estimated value. According to the invention, millimeter waves are used for measurement, the method is more accurate than TOA and AOA detection technologies at the present stage, is not liable to be affected by noise, and can improve the positioning precision of an object based on the positioning information.

Description

technical field [0001] The present invention relates to the field of positioning technology, in particular to a method and system for acquiring positioning information based on millimeter waves. Background technique [0002] At present, my country's positioning technology is mainly based on Bluetooth, Lora, Long Term Evolution and other wireless communication technologies. Usually we obtain location information indirectly by detecting network parameters. Commonly used positioning information includes: Time-of-Arrival (TOA), Time-Difference-of-Arrival (TDOA), Received SignalStrength (RSS), Angle-of-Arrival (AOA). However, because the positioning information mentioned above is extremely unstable, it is easily disturbed by the outside world, such as multipath and none-line-of-sight. [0003] Technologies such as Bluetooth and LoRa mainly obtain the location information of the positioning target by obtaining RSS. But RSS is more unstable than TOA, TDOA, and AOA. For example,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W64/00H04B7/08
CPCH04W4/023H04W64/006H04B7/08
Inventor 何家俊马文驷苏庆祥全永珍
Owner SHENZHEN RONGTENG SCI & TECH CO LTD
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