Shuhua ZHAO, Yubing WANG, Mingshi ZHANG, Li QIN, Junfeng SONG, Lijun WANG. FMCW Lidar and noise analysis of data acquisition signal chain[J]. Optics and Precision Engineering, 2023, 31(1): 78
- Optics and Precision Engineering
- Vol. 31, Issue 1, 78 (2023)
Fig. 1. Single-ended to differential-ended circuit
Fig. 2. AD conversion circuit
Fig. 3. Ethernet interface circuit
Fig. 4. Waveforms acquired by ADC
Fig. 5. Distribution of （a）SNR， （b） SINAD and （c） SFDR
Fig. 6. DC characteristics of ADC and Gaussian fitting
Fig. 7. Transfer function of ideal ADC
Fig. 8. Relationship between phase error and clock jitter
Fig. 9. Calculated and theoretical values of clock jitter at different frequencies
Fig. 10. Proportion of noises
Fig. 11. Filtered surface diagram
Fig. 12. Structure of FMCW lidar system
Fig. 13. Frequency domain waveforms of targets at different distances
Fig. 14. Measurement result of FMCW lidar
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Table 1. DC characteristics of ADC
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Table 2. Calculation of phase noise and clock jitter of input signals
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Table 3. Comparison of FMCW lidar
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Table 4. Measurement results of targets at different distances
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