Yingqi Liao, Suhui Yang, Jian Song, Yan Hao, Zhen Xu. Frequency-response measurement of forward scattering clutters in water by using vortex beams[J]. Infrared and Laser Engineering, 2023, 52(9): 20220831
- Infrared and Laser Engineering
- Vol. 52, Issue 9, 20220831 (2023)
Fig. 1. Time-domain signal and corresponding spectra of (a) scattering clutters in the echo and (b) target-reflected signal light when attenuation length is 9
Fig. 2. SCR versus modulation frequency under AL=11 and AL=12
Fig. 3. Experimental setup with plate (a) or plate (b)
Fig. 4. Time-domain signal and corresponding spectra of (a) scattering clutters in the echo and (b) target-reflected signal light when AL=10
Fig. 5. In the spectrum of the (a) scattering clutters in the echo and (b) target-reflected signal light, amplitude of modulation frequency versus the modulation frequency at different ALs
Fig. 6. SCR versus modulation frequency under AL=11 and 12
Fig. 7. Ranging experimental setup
Fig. 8. Ranging results for different modulation frequencies in clean water
Fig. 9. Ranging results for different modulation frequencies in different ALs
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