Title:
ELECTRONIC DEVICE, METHOD FOR CONTROLLING ELECTRONIC DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/024690
Kind Code:
A1
Abstract:
This electronic device is provided with: a transmitting antenna that transmits a transmission wave; a plurality of receiving antennas that receive a reflected wave that is the reflected transmission wave; and a signal processing unit that detects an object, by the subspace method, on the basis of a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The signal processing unit estimates the direction-of-arrival of the reflected wave on the basis of, with respect to the locations on the complex plane of solutions to the algebraic-equation root–MUSIC polynomial (hereinafter termed "RMP solutions") in the root–MUSIC method, the RMP solutions that satisfy a first requirement regarding the distances between a unit circle and the RMP solutions in the complex plane, and a second requirement regarding distances or arguments, in the complex plane, of at least two RMP solutions that are adjacent, among the RMP solutions.
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Inventors:
KURODA JUN (JP)
SAHARA TOORU (JP)
TONG FANGWEI (JP)
HOMMA TAKUYA (JP)
SAHARA TOORU (JP)
TONG FANGWEI (JP)
HOMMA TAKUYA (JP)
Application Number:
PCT/JP2021/025517
Publication Date:
February 03, 2022
Filing Date:
July 06, 2021
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
G01S7/02; G01S3/802
Foreign References:
| US10327221B1 | 2019-06-18 | |||
| JP2016080369A | 2016-05-16 | |||
| JP2013152239A | 2013-08-08 |
Other References:
"Adaptive signal processing with array antenna", 25 November 1998, KAGAKU GIJUTSU SHUPPAN, INC, JP, ISBN: 4-87653-054-8, article KIKUMA, NOBUYOSHI: "Chapter 10 Eigenvalues of Correlation Matrix Arrival direction estimation method using eigenvectors", pages: 191 - 209, XP009534045
YAMADA, HIROYOSHI; YAMAKURA, TOSHIHARU; YAMAGUCHI, YOSHIO: "Detection Performance of Coherent Signals by the Polarization Averaging MUSIC Algorithm", TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS B, vol. J82-B, no. 9, 25 September 1999 (1999-09-25), pages 1739 - 1746, XP009533803, ISSN: 1344-4697
KRIM HAMID: "Operator Approach to Performance Analysis of Root-MUSIC and Root-Min-Norm", IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol. 40, no. 7, 1 July 1992 (1992-07-01), pages 1687 - 1696, XP055890600, DOI: 10.1109/78.143441
RAO BHASKAR D.: "Performance Analysis of Root-Music", IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. 37, no. 12, 1 December 1989 (1989-12-01), pages 1939 - 1949, XP055890606, DOI: 10.1109/29.45540
YAMADA, HIROYOSHI; YAMAKURA, TOSHIHARU; YAMAGUCHI, YOSHIO: "Detection Performance of Coherent Signals by the Polarization Averaging MUSIC Algorithm", TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS B, vol. J82-B, no. 9, 25 September 1999 (1999-09-25), pages 1739 - 1746, XP009533803, ISSN: 1344-4697
KRIM HAMID: "Operator Approach to Performance Analysis of Root-MUSIC and Root-Min-Norm", IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol. 40, no. 7, 1 July 1992 (1992-07-01), pages 1687 - 1696, XP055890600, DOI: 10.1109/78.143441
RAO BHASKAR D.: "Performance Analysis of Root-Music", IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. 37, no. 12, 1 December 1989 (1989-12-01), pages 1939 - 1949, XP055890606, DOI: 10.1109/29.45540
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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