Effect of atmospheric back-scattering ratio on measurement of wind velocity
The single-edge technique measuring Doppler shift of Rayleigh-scattering and Mie-scattering simultaneously is presented. The method is used to detect atmospheric wind velocity at low altitude(12 km). The error of the measurement caused by the atmospheric back-scattering ratio R_b can't be ignored. The measurement sensitivity and results are analyzed. The calibrated curve of wind velocity measurement was calculated under different value of R_b. The results show that the sensitivity tends to increase along with the increase of R_b and the error of measurement increases along with the deviation of R_b. At the same time, the measuremental error tends to increase with the augment of the radial wind velocity under the same deviation of R_b.