Liu Yang, Zhang Tianshu, Xiang Yan, Zhong Liujun, Fu Yibin, Zheng Zhaoyang, Lü Lihui. Influence of Stray Light in Low Blind Zone on Signal Quality of Lidar System[J]. Chinese Journal of Lasers, 2018, 45(5): 505001
- Chinese Journal of Lasers
- Vol. 45, Issue 5, 505001 (2018)
Fig. 1. Diagrams of (a) transmission type and (b) reflection type Mie scattering lidar systems
Fig. 2. (a)(c) Optical structural diagrams and (b)(d) spot diagrams of signal receiving unit of lidar system
Fig. 3. Ray tracing of stray light in a transmission type optical system
Fig. 4. Receiving powers on detector surface source after reflection by (a) 1st, (b) 2nd, (c) 3rd, (d) 4th, (e) 5th, and (f) 6th mirror
Fig. 5. (a) Light tracing of reflection of transmission type lens surface; (b) actual imaging effect of detector's surface source; (c) light power curve received by detector's surface source
Fig. 6. (a) Light tracing of reflection light and scattering light of transmission type lens surface; (b) actual imaging effect of detector's surface source; (c) light power curve received by detector's surface source
Fig. 7. (a) Simulated and (b) measured data curves
Fig. 8. Echo signal intensity of (a) transmission type and (b) reflection type laser lidars
Fig. 9. Echo signal intensity of (a) transmission type and (b) reflection type laser lidars with attenuation piece
Fig. 10. Signal linearity of far-field echo after the attenuation of (a) transmission type and (b) reflection type lidars
Fig. 11. Signal linearity of near-field echo after the attenuation of (a) transmission type and (b) reflection type lidars
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