Jing Yang, Yuli Han, Xianghui Xue, Tingdi Chen, Yiming Zhao, Dongsong Sun. Design and analysis of laser wind velocimetry for stratospheric airships[J]. Infrared and Laser Engineering, 2023, 52(5): 20220642
- Infrared and Laser Engineering
- Vol. 52, Issue 5, 20220642 (2023)
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
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Table 1. Key parameters of fiber laser velocimetry
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