Xiao Zhao, Haima Yang, Jia Qiang, Jin Liu, Jianyu Wang. High-Precision Coherent Laser Ranging Method Based on Kalman Filtering[J]. Acta Optica Sinica, 2020, 40(14): 1412001
- Acta Optica Sinica
- Vol. 40, Issue 14, 1412001 (2020)
Fig. 1. Schematic of S-LFMCW coherent laser detection system
Fig. 2. Principle of coherent laser detection
Fig. 3. Principle of S-LFMCW ranging
Fig. 4. Static target
Fig. 5. Detection results of static target
Fig. 6. Data fusion results of static target
Fig. 7. Comparison of static ranging deviations under different conditions. (a) S-LFMCW coherent laser detection system; (b) data fusion(Q=Q1); (c) data fusion(Q=Q2); (d) data fusion(Q=Q3)
Fig. 8. Experimental diagram of dynamic target detection
Fig. 9. Experimental results of simple harmonic motion
Fig. 10. Experimental results of variably accelerated motion
Fig. 11. Experimental results of uniformly retarded motion
Fig. 12. Comparison of dynamic ranging errors under different conditions. (a) S-LFMCW coherent laser detection system; (b) data fusion (Q=Q1); (c) data fusion (Q=Q2); (d) data fusion (Q=Q3)
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Table 1. Accuracy comparison of speed and range measurement based on LFMCW
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