Incoherent Doppler wind lidar measures the wind by detecting the frequency shift of the laser backscattering from
aerosol and atmosphere molecules. The wind measurement sensitivity of edge detection technology like iodine vapor
filter depends on the aerosol load of probe volume. The current Direct detect wind lidar system has to obtain the
measurement sensitivity from the independent measurement or prior atmosphere aerosol data before accurate wind
retrieval. Otherwise, the variation of aerosol mixing ratio would introduce great uncertainty in the wind speed
measurement, which is unacceptable on airborne and space-borne Doppler lidar. This paper proposes a new method to
achieve real-time wind speed calibration by three adjacent frequency laser pulses alternately transmitted. Three laser
pulses are frequency locked to the middle and two wings of the iodine filter absorption line. Because the frequency of
triple pulses is changing rather fast, it can be approximately regarded as a synchronous measurement of both aerosol
mixing ratio and wind speed. By this way, we can not only ensure the wind measure accuracy, but also achieve the
reliable wind field measurement on a mobile platform.
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