Title:
SYSTEM IDENTIFICATION DEVICE, SYSTEM IDENTIFICATION METHOD, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/163701
Kind Code:
A1
Abstract:
A system identification device 1 includes an analysis unit 105 that calculates a self-frequency response function on the basis of an input signal and an output signal measured by a measurement unit 103 at a position where a subject physical system 106 has been excited by a vibrating unit 102. The analysis unit 105 performs system identification of the subject physical system 106 by using an impulse response function obtained from the calculated self-frequency response function and an impulse response function of a virtual two-degrees-of-freedom model modeling the subject physical system 106 that is the subject of analysis. This makes it possible to perform system identification of systems with close eigenvalues.
Inventors:
TAKATA SOICHIRO (JP)
INOUE HIROFUMI (JP)
SHINODA SHIGEKI (JP)
KIKUCHI KATSUMI (JP)
INOUE HIROFUMI (JP)
SHINODA SHIGEKI (JP)
KIKUCHI KATSUMI (JP)
Application Number:
PCT/JP2019/005805
Publication Date:
August 29, 2019
Filing Date:
February 18, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01M7/02; G05B23/02
Domestic Patent References:
WO2015059956A1 | 2015-04-30 | |||
WO2016114136A1 | 2016-07-21 | |||
WO2015118737A1 | 2015-08-13 | |||
WO2015118737A1 | 2015-08-13 | |||
WO2015059956A1 | 2015-04-30 |
Foreign References:
JPH0477798A | 1992-03-11 | |||
JPH03217901A | 1991-09-25 | |||
JPH0477798A | 1992-03-11 | |||
JPH03217901A | 1991-09-25 | |||
JP2018029218A | 2018-02-22 |
Other References:
KOMATSU, MASATAKA ET AL.: "Vibration characteristics estimation for the structure with closely existing eigenvalues by realization theory", JOURNAL OF STRUCTURAL ENGINEERING, JAPAN SOCIETY OF CIVIL ENGINEERS, vol. 59, pages 340 - 352, ISSN: 1881-820X
NAKAMIZO, TAKAYOSHI ET AL.: "Signal Analysis and System Identification", Tokyo : CORONA PUBUSHING, pages 22 - 24, ISBN: 4-339-03081-3
NAKAMIZO TAKAYOSHI: "Signal Analysis and System Identification", 1988, CORONA PUBLISHING, pages: 22 - 24,49-53,121-127
See also references of EP 3757704A4
NAKAMIZO, TAKAYOSHI ET AL.: "Signal Analysis and System Identification", Tokyo : CORONA PUBUSHING, pages 22 - 24, ISBN: 4-339-03081-3
NAKAMIZO TAKAYOSHI: "Signal Analysis and System Identification", 1988, CORONA PUBLISHING, pages: 22 - 24,49-53,121-127
See also references of EP 3757704A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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