Title:
METHOD AND APPARATUS FOR REALIZING BEAM ALIGNMENT
Document Type and Number:
WIPO Patent Application WO/2021/037080
Kind Code:
A1
Abstract:
Disclosed are a method and apparatus for realizing beam alignment. The method comprises: when a first signal with effective strength is received by means of two analog sub-arrays, which have the same polarization manner, using receiving beams with the same beam direction, acquiring the first signals received by means of the two analog sub-arrays and the phase center difference between the two analog sub-arrays; maintaining the beam direction of the receiving beams of the two analog sub-arrays unchanged, changing the phase center difference between the two analog sub-arrays for the first time, and acquiring second signals received by means of the two analog sub-arrays and the phase center difference, which has been changed for the first time; maintaining the beam direction of the receiving beams of the two analog sub-arrays unchanged, changing the phase center difference between the two analog sub-arrays for the second time, and acquiring third signals received by means of the two analog sub-arrays and the phase center difference, which has been changed for the second time; and estimating a DOA of a received signal according to the obtained information, and directing the centers of the receiving beams to the estimated DOA.
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Inventors:
GUO XIAOJIANG (CN)
Application Number:
PCT/CN2020/111483
Publication Date:
March 04, 2021
Filing Date:
August 26, 2020
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04B7/08; G01S3/16
Domestic Patent References:
| WO2018206098A1 | 2018-11-15 |
Foreign References:
| CN103353587A | 2013-10-16 | |||
| CN103383452A | 2013-11-06 |
Other References:
ZHOU ANGE: "Study on method of multiple Sub-array Beam-space in sonar imaging", BASIC SCIENCES, CHINA MASTER’S THESES FULL-TEXT DATABASE, no. 2, 15 February 2019 (2019-02-15), XP055785925
KORNAROS EVANGELOS, KABIRI SAMAN, DE FLAVIIS FRANCO: "A Novel Model for Direction Finding and Phase Center With Practical Considerations", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ., US, vol. 65, no. 10, 1 October 2017 (2017-10-01), US, pages 5475 - 5491, XP055785824, ISSN: 0018-926X, DOI: 10.1109/TAP.2017.2735462
See also references of EP 3972151A4
KORNAROS EVANGELOS, KABIRI SAMAN, DE FLAVIIS FRANCO: "A Novel Model for Direction Finding and Phase Center With Practical Considerations", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ., US, vol. 65, no. 10, 1 October 2017 (2017-10-01), US, pages 5475 - 5491, XP055785824, ISSN: 0018-926X, DOI: 10.1109/TAP.2017.2735462
See also references of EP 3972151A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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