Title:
AZIMUTH DETECTION DEVICE AND AZIMUTH DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/188142
Kind Code:
A1
Abstract:
An azimuth detection device (100) comprises: a signal reception unit (107) that includes an antenna array in which a plurality of antennas (101) are disposed at unequal intervals, and that receives incoming signals with the antenna array; and a signal processing circuit (110) that, if a plurality of incoming signals are included in each of one or more predetermined bands from the incoming signals, separates the incoming signals, calculates, in a specific frequency, an inter-antenna phase difference which is a phase difference between the plurality of antennas (101) from a frequency component of each incoming signal, and estimates an incoming azimuth of each incoming signal from the inter-antenna phase difference.
Inventors:
NAGANO TAKAFUMI (JP)
TSUJITA WATARU (JP)
TSUJITA WATARU (JP)
Application Number:
PCT/JP2022/016096
Publication Date:
October 05, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S3/48; G01S3/74
Foreign References:
| US4701762A | 1987-10-20 | |||
| US20210270925A1 | 2021-09-02 | |||
| CN112771401A | 2021-05-07 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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