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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.28 No.5
- 발행연도
- 2021.11
- 수록면
- 675 - 687 (13page)
이용수
초록· 키워드
오류제보하기
A new method is proposed to improve the accuracy of structural instantaneous frequency (IF) extraction. The proposed method combines a new form of improved generalized S-transform (IGST) and a multi-synchrosqueezing operation. The parameters selection of the window function in IGST is derived through the concentration measure (CM) principle. Then, the multi-synchrosqueezing algorithm is employed to improve energy aggregation of time-frequency analysis (TFA). To verify the effectiveness and accuracy of the proposed improved multi-synchrosqueezing generalized S-transform (IMSSGST), a frequency-modulated multi-component signal is investigated. For structural IF extraction, a two-story shear frame and a threestory steel frame structure are introduced. Furthermore, the IF identification of a seven-story RC shear wall structure is conducted to verified the practicability in actual engineering. Numerical simulation and experimental results show that the proposed method can effectively improve the energy aggregation of TFA and effectively improve the accuracy of IF identification.
목차
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참고문헌 (37)
참고문헌 신청
Said Assous / 2012 / Evaluation of the modified S-transform for time-frequency synchrony analysis and source localisation / EURASIP Journal on Advances in Signal Processing 2012(1):49
Ratikanta Behera / 2018 / Theoretical analysis of the second-order synchrosqueezing transform / Applied and Computational Harmonic Analysis 45(2):379~404
Hongrui Cao / 2016 / Zoom synchrosqueezing transform and iterative demodulation: Methods with application / Mechanical Systems and Signal Processing 72-73:695~711
Ingrid Daubechies / 2011 / Synchrosqueezed wavelet transforms: An empirical mode decomposition-like tool / Applied and Computational Harmonic Analysis 30(2):243~261
Igor Djurović / 2008 / Frequency-based window width optimization for -transform / AEU - International Journal of Electronics and Communications 62(4):245~250
Ratikanta Behera / 2018 / Theoretical analysis of the second-order synchrosqueezing transform / Applied and Computational Harmonic Analysis 45(2):379~404
Hongrui Cao / 2016 / Zoom synchrosqueezing transform and iterative demodulation: Methods with application / Mechanical Systems and Signal Processing 72-73:695~711
Ingrid Daubechies / 2011 / Synchrosqueezed wavelet transforms: An empirical mode decomposition-like tool / Applied and Computational Harmonic Analysis 30(2):243~261
Igor Djurović / 2008 / Frequency-based window width optimization for -transform / AEU - International Journal of Electronics and Communications 62(4):245~250
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