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논문 기본 정보

자료유형
학술대회자료
저자정보
Takakuwa, Y. (Faculty of Engineering, Hiroshima-Denki Institute of Technology) Ohta, M. (Faculty of Engineering, Kinki University) Nishimura, M. (Faculty of Engineering, Hiroshima-Denki Institute of Technology) Minamihara, H. (Faculty of Engineering, Okayama University of Science)
저널정보
한국음향학회 한국음향학회 학술발표대회 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
발행연도
1994.1
수록면
806 - 811 (6page)

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Two kinds of static and dynamic state estimation methods are newly discussed for the problem of the measurement disturbance of environmental low-frequency noise in the presence of wind-induced noise. First, the probability characteristics of wind-induced noise are discussed in the form of probability distribution conditioned by wind speed, based on the simultaneous observation of the wind-induced noise and wind speed near a microphone. Next, especially form the viewpoint of simplicity for practical use, two kinds of static and dynamic state estimation methods are discussed. The static estimation method using the information on wind speed is fundamentally supported by the conservation principle of energy sum. The dynamic one is the method by using a recursive digital filter with the parameters successively renewed by the information on wind speed. This can be also simplified by using well-know Kalman filter under the assumption of the Gaussian distribution. The effectiveness of proposed two estimation methods are shown through experiments under a breezy condition in the open filed.

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