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A near-field ultra-wideband ranging method in a medium

A distance measurement method, ultra-wideband technology, applied in the field of communication, to achieve the effect of effective distance measurement

Active Publication Date: 2020-02-07
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a near-field ultra-wideband distance measurement method in the medium to solve the problem that the existing technology cannot realize distance measurement in the medium

Method used

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  • A near-field ultra-wideband ranging method in a medium
  • A near-field ultra-wideband ranging method in a medium
  • A near-field ultra-wideband ranging method in a medium

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0041] Aiming at the existing problem that it is difficult to realize effective ranging in the medium, the present invention provides a near-field ultra-wideband ranging method in the medium.

[0042] see figure 1 As shown, the medium near-field ultra-wideband ranging method provided by the embodiment of the present invention includes:

[0043] S101, at a receiving end, receive an ultra-wideband signal transmitted by a transmitting end and transmitted through a medium, wherein the transmitting end is located at one end of the medium, and the receiving end is located at the other end of the medium, and the received signal includes: the signal transmitted by the transmitting end electric field components and magnetic field components i...

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Abstract

The invention provides a near-field ultra-broadband ranging method in a medium, and can realize effective ranging in the medium. The method comprises the following steps: at a receiving end, receivingan ultra-broadband signal transmitted through the medium and emitted from a sending end, wherein the sending end is arranged at one end of the medium and the receiving end is arranged at the other end of the medium, and the received signal comprises an electric field component and a magnetic field component in the ultra-broadband signal emitted from the sending end; obtaining direction of arrival and phase difference of the received signal at each frequency point, wherein the phase difference is phase difference between the electric field component and the magnetic field component; and according to the direction of arrival of the received signal at each frequency point and relation between the phase difference between the electric field component and the magnetic field component and communication distance, determining the distance between the sending end and the receiving end. The method relates to the communication field.

Description

technical field [0001] The invention relates to the field of communications, in particular to a near-field ultra-wideband ranging method in a medium. Background technique [0002] With the development of wireless communication technology, positioning technology has received more and more attention. However, due to the complexity of the application environment, commonly used high-frequency wireless signals, such as ultra-wideband and wireless fidelity (Wireless Fidelity, WIFI), have serious problems of multipath interference and attenuation, which affect the positioning accuracy. [0003] Prior art 1, patent CN100338478C proposes a near-field ultra-wideband signal phase difference ranging system, which is a system that uses Near Field Electromagnetic Ranging (NFER) technology to achieve real-time positioning, and uses low-frequency Narrowband signals can better penetrate the characteristics of buildings, effectively reduce multipath interference, and improve positioning accu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S11/02
CPCG01S11/02
Inventor 张晓彤刘知洋王鹏徐丽媛万亚东
Owner UNIV OF SCI & TECH BEIJING
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