Fig. 1. Schematic diagram of the all-fiber CW coherent wind lidar system

Fig. 2. Curve of antenna efficiency versus truncation ratio

Fig. 3. Curve of CNR versus local oscillator signal power

Fig. 4. Curve of weight function versus sensing range at different focusing distance

Fig. 5. Divergence angle of the telescope after collimating at different field of view

Fig. 6. MTF diagram of the telescope in different field of view

Fig. 7. Spot diagrams of focusing distance at 100 m and 200 m

Fig. 8. Enclosed energy of the even-aspheric coupling len

Fig. 9. Picture of CW coherent wind lidar

Fig. 10. Schematic of the calibration experimental system

Fig. 11. Experimental results at the motor rotation speed of +2 000 r/min

Fig. 12. LOS velocities measured by LIDAR system compared with theoretical calculation results

Fig. 13. Experimental results of the Doppler shift frequency in wind velocity tmeasurement

Fig. 14. LOS wind velocity experimental results at different azimuth