Wuhao YANG, Pu ZHANG, Xinfeng YANG, Qimin CHEN, Wei ZHAO. Performance Optimization and Experimental Research of Continuous Wave Coherent Wind Lidar[J]. Acta Photonica Sinica, 2021, 50(4): 81
- Acta Photonica Sinica
- Vol. 50, Issue 4, 81 (2021)
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
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Table 1. Main parameters of the all-fiber coherent wind lidar
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