Doppler wind lidar with dual Fabry-Perot interferometer

The 1 064 nm Doppler wind lidar with a dual Fabry-Perot interferometer based on the edge technique has been developed to measure the wind profile in the troposphere. The construction of the lidar system is described. The dual interferometer with high-spectral resolution is used to discriminate the Doppler shift from the aerosol backscattering. The accuracy of the lidar system is analyzed and discussed especially for the interferometer parameters. The transmittance curve of the interferometer is measured and the standard deviation of the transmittance will cause a velocity error of 0.5 m/s. The result of the analysis show that the error of the lidar measurement ranges from less than 2 m/s up to 10 km for the wind velocity of 50 m/s and the error increases with the increase of the radial vel