Fig. 1. Double edge measurement principle

Fig. 2. Schematic of horizontal wind measurement

Fig. 3. Wind velocity detection error versus radial wind velocity error

Fig. 4. Wind direction detection error versus wind speed

Fig. 5. Schematic diagram of the fiber laser velocimetry

Fig. 6. Data acquisition timing sequence

Fig. 7. Relationship between the finess and FSR of F-P etalon

Fig. 8. Relationship between radial wind detection error and the FSR of F-P etalon

Fig. 9. Velocity sensitivity of the molecular and aerosol scattering signals varies with the frequency interval change of two edge channel etalons

Fig. 10. SNR curves of 532 nm in daytime and nighttime detection

Fig. 11. Radial wind velocity error varying with detection distance at different wind velocities