The technique for the atmospheric wind measurement with a Fizeau interferometer has been proposed. The system uses a Fizeau etalon for spectral analysis, and the comb-like interference patterns are determined by a linear CCD array. The gravity of the pattern is proportional to the Doppler shift of the backscattering signal from wind. The simulation with the Monte-Carlo method shows that the accuracy of Doppler measurement is better than a tenth of the spectral width of a single CCD component in 90% detection probability. The accuracy of the lidar system is about 2 m/s in the vertical up to height of 2 km.