Title :
Correlation between scintillation of laser beam and wind noise
Author :
Mitani, Y. ; Kagawa, N. ; Tsutsumoto, K. ; Takakuwa, Y.
Author_Institution :
Fukuyama Univ., Japan
Abstract :
The wind noise fluctuates randomly owing to the temporal changes of wind speed. The scintillation of laser beam results from temporal and spatial changes in atmospheric turbulence and/or pressure. In this paper, the power spectral density function (PSDF) as statistical characteristics for the wind noise is first discussed by applying the theoretical PSDF of atmospheric turbulence to this wind noise. Next, the correlation between the scintillation of laser beam and the wind noise is studied from the experimental viewpoint.
Keywords :
acoustic noise; atmospheric techniques; correlation theory; measurement by laser beam; scintillation; spectral analysis; statistical analysis; wind; PSDF; atmospheric turbulence; laser beam; power spectral density function; scintillation correlation; spatial changes; temporal changes; wind noise fluctuation; wind speed changes; Acoustic beams; Acoustic noise; Frequency; Laser beams; Laser noise; Laser theory; Low-frequency noise; Microphones; Noise level; Wind speed;
Conference_Titel :
SICE 2002. Proceedings of the 41st SICE Annual Conference
Print_ISBN :
0-7803-7631-5
DOI :
10.1109/SICE.2002.1196612
