Fig. 1. Principle of Rayleigh scattering Doppler frequency measurement

Fig. 2. Diagram of Doppler wind lidar receiver

Fig. 3. FP etalon interference fringes before and after parallel

Fig. 4. Flow chart of transmittance curve scanning

Fig. 5. Collected the pulse signal output by PMT

Fig. 6. Transmittance curve and fitting result obtained by pulsed light scanning

Fig. 7. Transmittance function of molecular scattering signal in etalon edge channel

Fig. 8. Photo and structure diagram of Doppler wind lidar system

Fig. 9. Flow chart of wind field detection experiment

Fig. 10. 5 consecutive observations of radial wind velocity in the same direction

Fig. 11. Measurement results of four azimuth radial wind speeds on the evening of May 18

Fig. 12. Comparison result of wind measurement lidar system and radiosonde at 10:56 on May 12, 2020

Fig. 13. Comparison result of wind measurement lidar system and radiosonde at 22:36 on May 18, 2020

Fig. 14. The radiosonde rises to a distance of 10 km from the lidar