Infrared and Laser Engineering, Volume. 51, Issue 4, 20210363(2022)
Influence of sampling frequency and laser pulse width on ranging accuracy of full-waveform LiDAR
Figures & Tables(5)
Fig. 3. Comparison of ranging accuracy under different sampling frequencies
Table 1. Data average parameters under 5 GHz sampling frequency
View tableView in ArticleTable 1. Data average parameters under 5 GHz sampling frequency
Optical pulse width/ns Amplitude of reference light/mV Pulse width of reference light/ns FWHM of reference light/ns Amplitude of the echo/mV Pulse width of echo/ns FWHM of echo/ns 1 61.15 3.71 1.82 157.38 3.04 1.42 2 125.78 4.38 2.06 170.69 3.81 1.81 3 163.99 5.12 2.42 177.85 4.6 2.29 4 175.87 6.04 2.92 179.72 5.49 2.84 5 175.61 7.19 3.57 174.54 6.47 3.48 6 175.99 8.28 4.31 177.15 7.5 4.18 7 175.96 9.13 4.96 177.57 8.4 4.83 8 175.94 10.31 5.82 175.02 9.63 5.70 9 176.15 10.92 6.26 176.06 10.25 6.14 10 177.10 12.05 7.03 175.14 11.35 6.89
Table 2. Ranging accuracy of different interpolation ratios
View tableView in ArticleTable 2. Ranging accuracy of different interpolation ratios
Equivalent sampling frequency after interpolation/GHz Ranging accuracy of original 5 GHz data/mm Ranging accuracy of original 2.5 GHz data/mm Ranging accuracy of original 1.25 GHz data/mm 1.25 Null Null 2.33 2.50 Null 1.30 1.19 5.00 0.76 0.89 0.98 10.00 0.72 0.83 0.91 20.00 0.70 0.77 0.89 40.00 0.69 0.76 0.87 80.00 0.69 0.76 0.87
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Hao Zhou, Qingzhou Mao, Qingquan Li. Influence of sampling frequency and laser pulse width on ranging accuracy of full-waveform LiDAR[J]. Infrared and Laser Engineering, 2022, 51(4): 20210363
Paper Information
Category: Lasers & Laser optics
Received: Jun. 1, 2021
Accepted: --
Published Online: May. 18, 2022
The Author Email: Mao Qingzhou (qzhmao@whu.edu.cn)
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