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Title:
SIGNAL ANALYSIS DEVICE, SIGNAL ANALYSIS METHOD, AND SIGNAL ANALYSIS PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/163487
Kind Code:
A1
Abstract:
A signal analysis device (1) includes a signal parameter analysis unit (20) that obtains a simultaneous decorrelation matrix P and/or the Hermitian transpose PH thereof wherein PHRjP are all diagonal matrixes in a spatial covariance matrix Rj (j is an integer between 1 and J, inclusive) modeling the spatial characteristics of each of intermingled J (J is an integer of two or greater) source signals, as a parameter for decorrelating the components corresponding to J source signals in an observed signal vector based on an observed signal acquired at I (I is an integer of two or greater) positions which are mutually different.

Inventors:
ITO, Nobutaka (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
NAKATANI, Tomohiro (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
ARAKI, Shoko (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
Application Number:
JP2019/003671
Publication Date:
August 29, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (5-1 Otemachi 1-chome, Chiyoda-ku Tokyo, 16, 〒1008116, JP)
International Classes:
G10L21/028; G10L21/0272
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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