Title:
SIGNAL SOURCE POSITION ESTIMATION DEVICE, SYSTEM, AND METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/073861
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a signal source position estimation device, system, and method whereby the positions of a plurality of signal sources can be precisely estimated even when signals are generated at approximately the same time from a plurality of different signal sources, and to provide a non-transitory computer readable medium. The signal source position estimation device (11) according to the present disclosure comprises: a time difference of arrival (TDOA) candidate value evaluation means (112) for calculating, for all combinations of two sensors (12i, 12j) selected from among a plurality of sensors (12), all candidate values for a time difference of arrival (TDOA) which is the time of arrival (TOA) difference between the two sensors (12i, 12j) of signals generated from each of a plurality of signal sources (A, B); and a solution candidate distribution derivation means (113) for deriving a solution candidate distribution obtained by forming a distribution of whether prescribed coordinates (x, y) are the coordinates of the plurality of signal sources (A, B), on the basis of coordinates of each of the plurality of sensors (12) and the candidate values of the time difference of arrival (TDOA).
Inventors:
KOHNO WATARU (JP)
KONDO REISHI (JP)
MISHIMA SAKIKO (JP)
KONDO REISHI (JP)
MISHIMA SAKIKO (JP)
Application Number:
PCT/JP2021/039791
Publication Date:
May 04, 2023
Filing Date:
October 28, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01S5/06; G01S5/22
Foreign References:
| US20040027276A1 | 2004-02-12 | |||
| US20150094086A1 | 2015-04-02 | |||
| US8098200B1 | 2012-01-17 | |||
| JP2008178006A | 2008-07-31 | |||
| JP2017150903A | 2017-08-31 | |||
| JP2018025556A | 2018-02-15 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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