Title:
SIGNAL SOURCE IDENTIFYING DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/105885
Kind Code:
A1
Abstract:
This signal source identifying device accepts signals represented by vectors having a prescribed direction from a plurality of signal sources, accepts measurement results of a plurality of sensors for measuring components in three mutually orthogonal axes, and identifies positions of the signal sources, and the vectors. The signal source identifying device comprises a relation matrix recording unit, and a position/vector deriving unit. The relation matrix recording unit records a relation matrix representing a relationship between the measurement results, grouped into the number of sensors, for each axis, and the vectors. The position/vector deriving unit derives the positions of the signal sources and the vectors that minimize a cost function, on the basis of the measurement results and the relation matrix. In the vectors, the components are grouped, for each axis, into a number of grid points in a space in which the signal sources are positioned, for each axis.
Inventors:
OGATA YUJI (JP)
YANAGIDA TOMONORI (JP)
YANAGIDA TOMONORI (JP)
Application Number:
PCT/JP2022/035075
Publication Date:
June 15, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
ADVANTEST CORP (JP)
International Classes:
G01C15/00; G01R29/00; G01R33/02; G01S5/02
Foreign References:
| JPH1026506A | 1998-01-27 | |||
| JP2002529133A | 2002-09-10 | |||
| CN112363110A | 2021-02-12 | |||
| JP2022169141A | 2022-11-09 |
Attorney, Agent or Firm:
HOSODA Masutoshi (JP)
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