Shubei Gong, Zhikun Qian, Bingyao Cao. Mechanism of Minimum Frequency Resolution in a Visible Light-Positioning System[J]. Laser & Optoelectronics Progress, 2023, 60(9): 0906005
- Laser & Optoelectronics Progress
- Vol. 60, Issue 9, 0906005 (2023)
Fig. 1. Principle of visible light imaging
Fig. 2. Imaging comparison at different frequencies. (a) 1000 Hz; (b) 1500 Hz; (c) 2000 Hz
Fig. 3. Influencing factors of imaging region size
Fig. 4. LED modulation frequency and roller shutter
Fig. 5. Experimental device and system block diagram. (a) Experimental device; (b) system block diagram
Fig. 6. LED-ID recognition rates at different frequency intervals
Fig. 7. Imaging comparison at different object distances. (a) 50 cm; (b) 100 cm; (c) 200 cm
Fig. 8. Influence of object distance on minimum frequency resolution
Fig. 9. Comparison between minimum frequency resolution and selected frequency interval
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Table 1. Key parameters of experiment
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