Title:
WAVE SOURCE DIRECTION ESTIMATION APPARATUS, WAVE SOURCE DIRECTION ESTIMATION SYSTEM, WAVE SOURCE DIRECTION ESTIMATION METHOD, AND WAVE SOURCE DIRECTION ESTIMATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2017/216999
Kind Code:
A1
Abstract:
This wave source direction estimation apparatus is capable of highly accurately estimating the direction of a wave source even in an environment with a high surrounding noise level, and is provided with: a plurality of input signal acquisition means for acquiring signals generated at a wave source as input signals; a correlation function calculation means for calculating correlation functions on the basis of the input signals acquired by the input signal acquisition means; an envelope function extraction means for extracting envelope functions on the basis of the calculated correlation functions; a combined envelope function calculation means for calculating a combined envelope function by combining the extracted envelope functions; and an estimated direction information generation means for generating estimated direction information about the wave source on the basis of the calculated combined envelope function.
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Inventors:
KATO MASANORI (JP)
SENDA YUZO (JP)
SENDA YUZO (JP)
Application Number:
PCT/JP2017/002787
Publication Date:
December 21, 2017
Filing Date:
January 26, 2017
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01S3/808; G01S3/86
Domestic Patent References:
| WO2015137425A1 | 2015-09-17 |
Foreign References:
| US20030081503A1 | 2003-05-01 | |||
| JPH11304906A | 1999-11-05 | |||
| JP2010185690A | 2010-08-26 | |||
| JP2016114512A | 2016-06-23 |
Attorney, Agent or Firm:
KATO Takashi (JP)
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