@inproceedings{a565ffdad706479daed7535652216403,
title = "Effects of exposure time on the image in atmospheric turbulence",
abstract = "Image distortions during the propagation of optical beam in the turbulent atmosphere are provoked. Exposure time has effect on the space distribution characteristics of light image in the focal-plane CCD or CMOS sensor. The effect of exposure time on the spot size and shape is analyzed both theoretically and experimentally. The expression of spot size variable with exposure time has been developed from the angle-of-arrival fluctuation by the longitudinal and transverse components. In an optical free-space laser transmission experiment over a three-month period, measurements of spot size at variable exposure times are shown. Theoretical and experimental results illuminate the important point that the effect of exposure time must be considered for the optical design. The results show that the spot size decreases with exposure time increasing. A rapid decrease is showed in the spot size for short exposure times up to about 20msec.",
keywords = "Atmospheric turbulence, Exposure time, Laser image, Spot size",
author = "Chong Gao and Ma Jing and Tan, \{Li Ying\}",
year = "2007",
doi = "10.1117/12.725350",
language = "英语",
isbn = "0819463493",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "27th International Congress on High-Speed Photography and Photonics",
note = "27th International Congress on High-Speed Photography and Photonics ; Conference date: 17-09-2006 Through 22-09-2006",
}