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Proceedings Paper

Accuracy analysis of optical ranging in atmosphere
Author(s): Hong-wu Yuan; Yin-bo Huang; Hai-ping Mei; Rui-zhong Rao
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Paper Abstract

Optical ranging is one of the most precise techniques for distance measurement. The effects of the density variation of atmosphere, aerosols and clouds on optical ranging precision are generally considered, a new method is proposed for calculating the ranging precision in the presence of aerosol particles and clouds. The size distribution spectrum models for aerosols and clouds in the Optical Properties of Aerosols and Clouds Package (OPAC) are adopted. Results show that aerosols and clouds could introduce errors of several centimeters to several ten meters to the ranging. The relationship between the ranging precision and the relative humidity, the zenith angle of ranging direction and the optical wavelength is also analyzed. The ranging error doesn't have an obvious relationship with the wavelength, but depends on the zenith angle, especially for the angle larger than 70 degree. The ranging error depends on the relative humidity as well. The ranging error induced by aerosols increases gradually with the increase of the relative humidity when the relative humidity is less than 80%, but it increases rapidly when the relative humidity is larger than 80%. Our results could provide a theoretical basis and reference for the application of optical ranging.

Paper Details

Date Published: 29 August 2009
PDF: 9 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73822N (29 August 2009); doi: 10.1117/12.835651
Show Author Affiliations
Hong-wu Yuan, Anhui Institute of Optics and Fine Mechanics (China)
Yin-bo Huang, Anhui Institute of Optics and Fine Mechanics (China)
Hai-ping Mei, Anhui Institute of Optics and Fine Mechanics (China)
Rui-zhong Rao, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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