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Title:
DISTANCE MEASUREMENT METHOD AND SYSTEM, ELECTRONIC DEVICE AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/007064
Kind Code:
A1
Abstract:
Provided are a distance measurement method and system, an electronic device and a readable storage medium, wherein same are applied to the technical field of wireless distance measurement. The method comprises: a measured device sending a first distance measurement carrier to a reference device, such that the reference device performs phase measurement on the first distance measurement carrier after receiving the first distance measurement carrier so as to obtain a carrier phase, and sending to the measured device a second distance measurement carrier with the same carrier phase, wherein the wavelength of the first distance measurement carrier is equal to the wavelength of the second distance measurement carrier (S101); after receiving the second distance measurement carrier, the measured device determining the phase difference between the second distance measurement carrier and the first distance measurement carrier (S102); and calculating the distance between the measured device and the reference device according to the pre-calculated rough distance between the measured device and the reference device, the phase difference and the wavelength of the first distance measurement carrier (S103). According to the solution, performing measurement by means of carrier phases of distance measurement carriers can improve distance measurement accuracy, does not require time synchronization, and realizes good universality.

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Inventors:
DENG ZHONGLIANG (CN)
ZHU DI (CN)
LIU YANXU (CN)
TANG SHIHAO (CN)
HU ENWEN (CN)
Application Number:
PCT/CN2019/078085
Publication Date:
January 09, 2020
Filing Date:
March 14, 2019
Export Citation:
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Assignee:
UNIV BEIJING POSTS & TELECOMM (CN)
International Classes:
G01S19/43
Foreign References:
CN108919323A2018-11-30
CN106970405A2017-07-21
CN108076445A2018-05-25
JPH08327374A1996-12-13
US20110050492A12011-03-03
Other References:
YANSONG CUI ET AL.: "PRG: A Distance Measurement Algorithm Based on", SENSORS, vol. 18, no. 8, 8 August 2018 (2018-08-08), XP055672301
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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