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.
초록· 키워드
오류제보하기
This paper presents a new approach to improve the signal to noise ratio (SNR) for local seismic disaster preventing system in densely populated area. The seismic data measured in the local site includes various sensing noises (offset or measurement noise) and man-made/natural noises (road and rail traffic noise, rotating or hammering machinery noise, human activity noise such as walking and running, wind/atmospheric pressure-generated noise, etc.). These additive noises are different in time and frequency characters. The proposed method uses 3-stages processing to reduce these different additive noises. In the first stage, misalignment offset noise are diminished by time average processing, and then the second and third stages, coherent/incoherent noises such as man-made/natural noises are suppressed by array stacking. In addition, we derived the theoretical equation of the SNR gain improved by the proposed method. To evaluate the performance of the proposed method, computer simulations were performed with real seismic data and test equipment generated data as the input.
목차
Abstract
1. 서론
2. 혼합 테스트
3. 미소-위치 배열 중합(Micro-Site Array stacking)을 이용한 잡음제거
4. 컴퓨터 시뮬레이션
5. 결론
References
참고문헌 (9)
참고문헌 신청
1. [단행본] - J. Aschau / 2003 / Early Warning Systems for Natural Disaster Reduction / Springer
2. [학술지(정기간행물)] - Y. M. Wu / 2008 / Development of an earthquake early warning system using real-time strong motion signals / Sensors 8 : 1 ~ 9
3. [학술지(정기간행물)] - R. M. Allen / 2003 / The potential for earthquake early warning in southern California / Science 300 : 786 ~ 789
4. [학술지(정기간행물)] - R. M. Allen / 2009 / The status of earthquake early warning around the world : an introductory overview / Seismological Research Letters 80 : 682 ~ 693
5. [보고서] - H. C. Chi / 2010 / Designing of the National Earthquake Early Warning System and Expanding of Realtome Data Sharing, Research report
2. [학술지(정기간행물)] - Y. M. Wu / 2008 / Development of an earthquake early warning system using real-time strong motion signals / Sensors 8 : 1 ~ 9
3. [학술지(정기간행물)] - R. M. Allen / 2003 / The potential for earthquake early warning in southern California / Science 300 : 786 ~ 789
4. [학술지(정기간행물)] - R. M. Allen / 2009 / The status of earthquake early warning around the world : an introductory overview / Seismological Research Letters 80 : 682 ~ 693
5. [보고서] - H. C. Chi / 2010 / Designing of the National Earthquake Early Warning System and Expanding of Realtome Data Sharing, Research report
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UCI(KEPA) : I410-ECN-0101-2015-500-001278479