Huiying ZHANG, Meichun SHENG, Chengyu MA, Yueyue LI, Shida LIANG. Indoor visible light positioning based on fusion of subregion BES-ELM and WDME weighted dual-mode[J]. Journal of Applied Optics, 2024, 45(6): 1321
- Journal of Applied Optics
- Vol. 45, Issue 6, 1321 (2024)
Fig. 1. Positioning structure
Fig. 2. PD layout
Fig. 3. Schematic diagram of subregional positioning model
Fig. 4. Structure diagram of ELM neural network
Fig. 5. Flow chart of BES-ELM positioning algorithm
Fig. 6. Schematic diagram of Elman model
Fig. 7. Schematic diagram of WDME positioning model
Fig. 8. Results of regional division
Fig. 9. Comparison of positioning errors
Fig. 10. Distribution diagram of positioning effects
Fig. 11. Distribution diagram of accumulative errors
Fig. 12. Distribution diagram of positioning errors
Fig. 13. Distribution diagram of accumulative errors
Fig. 14. Distribution curves of accumulative errors
Fig. 15. Distribution diagram of boundary area positioning errors
Fig. 16. Histogram of positioning errors proportion
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Table 1. Fuzzy c-means clustering algorithm flow
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Table 2. Simulation parameters
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Table 3. Error comparison m
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