Inversion algorithm of vertical visibility based on lidar and its error evaluation

Hairun Song; Xiaolei Wang; Hao Li

doi:10.11884/HPLPB202032.190250

Journals >High Power Laser and Particle Beams >Volume 32 >Issue 3 >Page 031002 > Article

High Power Laser and Particle Beams
Vol. 32, Issue 3, 031002 (2020)

Inversion algorithm of vertical visibility based on lidar and its error evaluation

Hairun Song, Xiaolei Wang^*, and Hao Li

Author Affiliations

College of Meteorology and Oceanography, National University of Defense Technology, Nanjing 210000, China

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DOI: 10.11884/HPLPB202032.190250 Cite this Article

Hairun Song, Xiaolei Wang, Hao Li. Inversion algorithm of vertical visibility based on lidar and its error evaluation[J]. High Power Laser and Particle Beams, 2020, 32(3): 031002 Copy Citation Text

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Fig. 1. The inversion flow chart of vertical visibility

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Fig. 2. Atmospheric extinction coefficient profile at 00:00 on May 2, 2019

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Fig. 3. Vertical visibility curve on May 2, 2019

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Fig. 4. Error distribution curves of backscattering coefficient

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laser wavelength/nm	operating mode	pulse energy/μWs	repetition rate/kHz	optics focus/mm	effective lens diameter/mm	measurement range/km	range resolution/m	measurement interval/s	field-of-view divergence/mrad
910	pulsed	3.0	6.5	450	148	0~15.4	10	6	0.56

Table 1. The main technical indicators of CL51 lidar

date	altitude/m	mean of error/10⁻⁴（srad·km）⁻¹	standard deviation of error/10⁻⁴（srad·km）⁻¹	confidence interval/10⁻⁴（srad·km）⁻¹
2019-05-02	0	0.726	0.225	0.726±0.318
	10	0.721	0.223	0.721±0.316
	20	0.743	0.231	0.743±0.327
	30	0.741	0.230	0.741±0.326
	40	0.760	0.240	0.760±0.339
	50	0.746	0.235	0.746±0.332
	60	0.708	0.223	0.708±0.223
	70	0.726	0.228	0.726±0.322
	80	0.683	0.215	0.683±0.304
	90	0.639	0.201	0.639±0.284
	100	0.609	0.192	0.609±0.192
2019-05-03	0	0.604	0.203	0.604±0.287
	10	0.593	0.200	0.593±0.282
	20	0.608	0.206	0.608±0.292
	30	0.608	0.207	0.608±0.292
	40	0.632	0.213	0.632±0.302
	50	0.628	0.211	0.628±0.298
	60	0.619	0.207	0.619±0.293
	70	0.618	0.207	0.617±0.292
	80	0.615	0.207	0.615±0.292
	90	0.590	0.197	0.590±0.279
	100	0.571	0.190	0.571±0.269

Table 2. Backscattering coefficient deviation result analysis by batch statistics

Hairun Song, Xiaolei Wang, Hao Li. Inversion algorithm of vertical visibility based on lidar and its error evaluation[J]. High Power Laser and Particle Beams, 2020, 32(3): 031002

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