Title:
METHOD AND DEVICE FOR IMPROVING PHASE MEASUREMENT ACCURACY
Document Type and Number:
WIPO Patent Application WO/2020/078291
Kind Code:
A1
Abstract:
A method and device for improving phase measurement accuracy, the method comprising: receiving a measurement signal (101); performing frequency domain transformation on the measurement signal to obtain a frequency domain measurement sequence (102); determining a phase corresponding to each frequency domain measurement signal and determining a phase difference between frequency domain measurement signals corresponding to two adjacent specified frequency points (103); performing sliding window phase fitting on the frequency domain measurement sequence according to phase, phase difference and a window function, so as to obtain phase fitting information corresponding to each sliding window (104); and determining phase calibration information corresponding to the each sliding window according to the phase fitting information of the each sliding window, and using the phase calibration information of the each sliding window to form phase calibration information in a specified frequency band (105), thereby reducing fitting error and improving the accuracy of phase calibration.
Inventors:
ZHANG YONG (CN)
SHI JING (CN)
SHI JING (CN)
Application Number:
PCT/CN2019/110890
Publication Date:
April 23, 2020
Filing Date:
October 12, 2019
Export Citation:
Assignee:
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO LTD (CN)
International Classes:
G01R25/00; H04L1/24
Foreign References:
| CN101458334A | 2009-06-17 | |||
| CN107689842A | 2018-02-13 | |||
| CN1273729A | 2000-11-15 | |||
| CN1728694A | 2006-02-01 | |||
| CN103152109A | 2013-06-12 | |||
| CN101588198A | 2009-11-25 | |||
| CN105264813A | 2016-01-20 | |||
| US20030185326A1 | 2003-10-02 | |||
| CN201811224077A | 2018-10-19 |
Other References:
See also references of EP 3836454A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF: