Laser & Optoelectronics Progress, Volume. 59, Issue 13, 1328003(2022)
Investigation of Light Frequency-Hopping LiDAR and Its Anti-Interference Performance
Figures & Tables(10)
Fig. 1. Schematic diagram of the anti-interference experiment setup of the LFH LiDAR
Fig. 2. Time-frequency diagram of modulation signal of the LFH LiDAR. (a) Principle of the LFH; (b) LFH LiDAR signal
Fig. 4. Ranging results of LFH LiDAR with same type interference. (a) β=1,M=1; (b) β=1,M=3; (c) β=4, M=2
Fig. 5. Ranging results of LFH LiDAR with pulse LiDAR interference. (a) β=1,M=1; (b) β=1,M=3; (c) β=4,M=2
Fig. 6. Ranging results of LFH LiDAR with FMCW LiDAR interference. (a) β=1,M=1; (b) β=1,M=3; (c) β=4,M=2
Fig. 7. Ranging results of LFH LiDAR with CW LiDAR interference. (a) β=1, M=1; (b) β=1, M=3; (c) β=4, M=2
Fig. 8. Experiment of interference. (a) 16-lines commercial pulse LiDAR; (b) low noise and tunable FMCW LiDAR; (c) experiment setup
Table 1. Simulation specifications of the LFH LiDAR
View tableTable 1. Simulation specifications of the LFH LiDAR
Specification Value Range /m 20 Points of frequency-hopping 10000 Bandwidth of frequency-hopping /GHz 10 Residence time per hop /μs 1 Spacing of frequency-hopping /MHz 1 Hopping period /ms 10
Table 2. Measuring results of six different distance with different interference sources and the relative error of distance measuring
View tableTable 2. Measuring results of six different distance with different interference sources and the relative error of distance measuring
Interference type No.1 /m No.2 /m No.3 /m No.4 /m No.5 /m No.6 /m /% R M R M R M R M R M R M CW（25 MHz） 1.99 1.98 2.27 2.28 3.15 3.14 3.50 3.51 2.99 3.00 2.70 2.72 ±0.8 CW（50 MHz） 1.99 1.99 2.27 2.29 3.15 3.13 3.50 3.51 2.99 3.00 2.70 2.71 ±0.9 CW（75 MHz） 1.99 1.98 2.27 2.27 3.15 3.15 3.50 3.50 2.99 3.00 2.70 2.72 ±0.7 Pulse 1.99 1.98 2.27 2.28 3.15 3.14 3.50 3.51 2.99 3.01 2.70 2.71 ±0.7 FMCW 1.99 1.98 2.27 2.28 3.15 3.15 3.50 3.52 2.99 3.01 2.70 2.72 ±0.7 LFH 1.57 1.56 2.27 2.27 2.48 2.46 3.50 3.51 2.99 3.00 2.70 2.74 ±1.5
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Yonglong Chen, Yingke Xie, Hengheng Liang, Xinghong Zhang, Cheng Liu. Investigation of Light Frequency-Hopping LiDAR and Its Anti-Interference Performance[J]. Laser & Optoelectronics Progress, 2022, 59(13): 1328003
Paper Information
Category: Remote Sensing and Sensors
Received: Aug. 1, 2021
Accepted: Sep. 10, 2021
Published Online: Jul. 1, 2022
The Author Email: Xie Yingke (xieyingke@cqut.edu.cn)
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