[OPTICAL REVIEW Vol. 6, No. 3 (1999) 163-166]

Application of Geometrical Form Factor in Measurement of Attenuation Coefficient of Atmosphere

Sang Whoe DHO and Seung Seok LEE

Nondestructive Evaluation Group, Korea Research Institute of Standards and Science, P.O. BOX 102, Yusong, Taejon 305-600, Korea

(Reveived July 31, 1998; Accepted Feb 12, 1999)

We calculated a theoretical G-factor for the lidar system and compared the calibration effect between this G-factor and a real G-factor in inversion of attenuation coefficient for an appropriately averaged lidar return signal in a homogeneous atmosphere. Examples to consider the effect of misalignment between the transmitter and receiver optical axes in inversion of attenuation coefficient are also presented.

Key words : geometrical form factor, slope method, attenuation coefficient