Lufeng Ji, Bingyi Liu, Peizhi Zhu, Jintao Liu, Kailin Zhang, Songhua Wu, Junwu Tang. Design and test of a blue-green dual-wavelength oceanic lidar system[J]. Infrared and Laser Engineering, 2024, 53(3): 20230597
- Infrared and Laser Engineering
- Vol. 53, Issue 3, 20230597 (2024)
Fig. 1. Oceanic lidar system design scheme
Fig. 2. System object
Fig. 3. Physical design of launch and receiver subsystem
Fig. 4. Monopulse signal of 486 nm parallel channel
Fig. 5. (a) Peak intensity of 1-minute signal; (b) Peak position of lidar echo signal; (c) Peak position of lidar echo signal after quality control; (d) Average signal before and after quality control
Fig. 6. (a) Average signals before and after alignment to the reference position; (b) Average signals before and after alignment according to correlation
Fig. 7. (a) Average signals before and after removing background noise (rectangular coordinate system); (b) Average signals before and after removing background noise (logarithmic coordinate system)
Fig. 8. (a) Average signals before and after deconvolution (rectangular coordinate system); (b) Average signals before and after deconvolution (logarithmic coordinate system)
Fig. 9. (a) Profile of 1-minute average signal; (b) SNR profile of 1-minute average signal
Fig. 10. (a) Signal profile of 4-hour 532 nm parallel channel; (b) Signal profile of 4-hour 486 nm parallel channel
Fig. 11. (a) Lidar attenuation coefficient profile of 4-hour 532 nm parallel channel; (b) Lidar attenuation coefficient profile of 4-hour 486 nm parallel channel
Fig. 12. Attenuation coefficient of lidar
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Table 1. Instrument and performance parameters of launch subsystem
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Table 2. Instrument and performance parameters of receiver subsystem
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Table 3. Instrument and performance parameters of acquisition and control subsystem
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