Chinese Journal of Lasers, Volume. 47, Issue 8, 810003(2020)
Principle Prototype and Experimental Progress of Wind Lidar in Near Space
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Fig. 1. Principle of Cabannes-Brillouin scattering Doppler measurement based on F-P etalon. (a) Zero Doppler shift; (b) 300 MHz Doppler shift
Fig. 4. Comparison of wind field data on December 18, 2018. (a)(c) Wind speed; (b)(d) wind direction
Fig. 5. SNR curve of echo signals and horizontal wind speed error curve corresponding to wind filed data retrieved by DWL principle prototype at 18:20 on December 18, 2018. (a) SNR curve of echo signals; (b)horizontal wind speed error curve
Fig. 6. Comparison of wind field data on December 19, 2018. (a) Wind speed; (b) wind direction
Fig. 7. Raw echo signals obtained by DWL principle prototype at 09:30 on December 19, 2018
Table 1. Main parameters of DWL system
View tableTable 1. Main parameters of DWL system
Parameter Content Wavelength 355 nm Laser energy 800 μJ Repetition rate 1000 Hz Receiving aperture 100 mm Receiving filed angle 0.21 mrad Scanning range 360°/120° Filter bandwidth 0.3 nm Filter peak transmission 0.8 Etalon peak transmission 0.7 Detector quantum efficiency 40%
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Liu Feifei, Bi Decang, Liu Heng, Yuan Lucheng, Wang Mingjian, Zhu Xiaopeng, Liu Jiqiao, Chen Weibiao. Principle Prototype and Experimental Progress of Wind Lidar in Near Space[J]. Chinese Journal of Lasers, 2020, 47(8): 810003
Paper Information
Category: remote sensing and sensor
Received: Feb. 10, 2020
Accepted: --
Published Online: Aug. 17, 2020
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