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A ranging method and receiving device

A technology of receiving equipment and ranging method, which is applied in the field of ranging, can solve the problems of high equipment capacity requirements and complicated operation process, and achieve the effect of simplifying the ranging process, reducing capacity requirements, and improving convenience

Active Publication Date: 2020-06-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor of this technical solution found in the research process that the above-mentioned ranging solution requires the receiving device to have the ability to reflect signals, and the transmitting device is required to have the ability to receive signals in a very short time, the operation process is complicated, and the equipment capability requirements are high.

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  • A ranging method and receiving device

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Embodiment Construction

[0033] 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 some 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 ordinary persons in the art without creative efforts fall within the protection scope of the present invention.

[0034] In order to better understand the technical solution of the present invention, the positioning system to which the distance measuring method provided in the embodiment of the present invention is applied is briefly described below. see figure 1 , figure 1 It is a system architecture diagram of a positioning system provided by an embodiment of the present invention. The positioning system includes a receiving device and a transmitting device, wherein the...

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Abstract

The invention discloses a distance measurement method and receiving equipment. The distance measurement method comprises the steps of receiving a first multi-carrier signal sent by first transmitting equipment, wherein the first multi-carrier signal comprises N subcarriers; determining M subcarriers in the N subcarriers according to pre-stored subcarrier selection parameters; determining a phase difference sequence of the first multi-carrier signal according the phase and phase difference sequence generation rules of the M subcarriers; and determining the transmission distance of the first multi-carrier signal according to a mapping relation between the phase difference sequence and the transmission distance. Adoption of the embodiment of the invention is conducive to improving the distance measurement convenience of the receiving equipment and reducing capability requirements of an OFDM multi-carrier system for the receiving equipment.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of ranging, and in particular, to a ranging method and a receiving device. Background technique [0002] At present, positioning is a relatively popular application field, for example, it can be used to perform indoor navigation and object tracking for users, among which positioning by distance measurement is a mainstream positioning method. [0003] In the existing ranging scheme, usually the transmitting device sends a positioning signal to the receiving device, and the receiving device sends the signal as it is within the specified time after receiving the positioning signal; and the transmitting device switches quickly after sending the positioning signal Receive state, receive the signal reflected from the other party, compare the received reflected signal with the sent signal, perform correlation and other operations, and obtain the time difference between the two signals, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S11/02G01S5/10
CPCG01S5/10G01S11/02
Inventor 杨晖刘永俊
Owner HUAWEI TECH CO LTD
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