지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.17 No.4
- 발행연도
- 2016.1
- 수록면
- 647 - 667 (21page)
이용수
초록· 키워드
오류제보하기
In this paper, dynamic displacement is estimated with high accuracy by blending high-sampling rate acceleration data with low-sampling rate displacement measurement using a two-stage Kalman estimator. In Stage 1, the two-stage Kalman estimator first approximates dynamic displacement. Then, the estimator in Stage 2 estimates a bias with high accuracy and refines the displacement estimate from Stage 1. In the previous Kalman filter based displacement techniques, the estimation accuracy can deteriorate due to (1) the discontinuities produced when the estimate is adjusted by displacement measurement and (2) slow convergence at the beginning of estimation. To resolve these drawbacks, the previous techniques adopt smoothing techniques, which involve additional future measurements in the estimation. However, the smoothing techniques require more computational time and resources and hamper real-time estimation. The proposed technique addresses the drawbacks of the previous techniques without smoothing. The performance of the proposed technique is verified under various dynamic loading, sampling rate and noise level conditions via a series of numerical simulations and experiments. Its performance is also compared with those of the existing Kalman filter based techniques.
목차
등록된 정보가 없습니다.
참고문헌 (38)
참고문헌 신청
Boore, D. M. / 2001 / Effect of baseline corrections on displacement and response spectra for several recordings of the 1999 Chi-Chi, Taiwan, earthquake / B. Seismol. Soc. Am 91(5):1199~1211
Boore, D. M. / 2002 / Comments on baseline correction of digital strong-motion data : examples from the 1999 Hector Mine, California, earthquake / B. Seismol. Soc. Am 92(4):1543~1560
Cao, L. / 2003 / Exponential convergence of the Kalman filter based parameter estimation algorithm / Int. J. Adapt. Control 17(10):763~783
Chan, W. S. / 2006 / An integrated GPS-accelerometer data processing technique for structural deformation monitoring / J. Geodesy 80(12):705~719
Chiu, H. C. / 1997 / Stable baseline correction of digital strong-motion data / B. Seismol. Soc. Am 87(4):932~944
Boore, D. M. / 2002 / Comments on baseline correction of digital strong-motion data : examples from the 1999 Hector Mine, California, earthquake / B. Seismol. Soc. Am 92(4):1543~1560
Cao, L. / 2003 / Exponential convergence of the Kalman filter based parameter estimation algorithm / Int. J. Adapt. Control 17(10):763~783
Chan, W. S. / 2006 / An integrated GPS-accelerometer data processing technique for structural deformation monitoring / J. Geodesy 80(12):705~719
Chiu, H. C. / 1997 / Stable baseline correction of digital strong-motion data / B. Seismol. Soc. Am 87(4):932~944
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