Zisheng Qiu, Fu Yang, Xingchen Ye, Shuxin Li. Research on Laser Ranging Technology Based on Pseudo-Random Code Phase Modulation and Coherent Detection[J]. Laser & Optoelectronics Progress, 2018, 55(5): 052801
- Laser & Optoelectronics Progress
- Vol. 55, Issue 5, 052801 (2018)
Fig. 1. Schematic of the laser ranging system based on the PRC phase modulation and coherent detection
Fig. 2. Principle diagrams of (a) when the delay doesn't match the target range and (b) when the delay matches the target range
Fig. 3. (a) Experimental system diagram; (b) targeted aluminum plate
Fig. 4. Coherent signal sampled by ADC channel 1
Fig. 5. Amplitude spectrum of the multiplication signal. (a) Delay doesn't match the target distance; (b) delay matches the target distance
Fig. 6. Relationship between the peak value of the Y amplitude spectrum and the distance corresponding to the different time delays
Fig. 7. 50 times detection results after core amendment
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Table 1. Comparison of the GLAS parameters and the experiment system parameters
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