[1] Zuo X. Research on indoor positioning algorithm based on visible light[D], 20-28(2020).

[2] Shi M Q, Cui L Z, Qin L et al. Single LED visible light indoor positioning system based on particle swarm optimization[J]. Laser Journal, 41, 31-34(2020).

[3] Chen H, Guan W P, Li S M et al. Indoor high precision three-dimensional positioning system based on visible light communication using modified genetic algorithm[J]. Optics Communications, 413, 103-120(2018).

[4] Wang B Y, Liu X L, Yu B G et al. Improved weighted K-nearest neighbor algorithm for WiFi fingerprint positioning[J]. Journal of Xidian University, 46, 41-47(2019).

[5] Zhao K, Hu H F. Indoor localization algorithm based on BP neural network and RFID[J]. Laser Journal, 36, 138-141(2015).

[6] Mousa F I K, Almaadeed N, Busawon K et al. Indoor visible light communication localization system utilizing received signal strength indication technique and trilateration method[J]. Optical Engineering, 57, 016107(2018).

[7] Lain J K, Chen L C, Lin S C. Indoor localization using K-pairwise light emitting diode image-sensor-based visible light positioning[J]. IEEE Photonics Journal, 10, 1-9(2018).

[8] Kim D, Park J K, Kim J T. Three-dimensional VLC positioning system model and method considering receiver tilt[J]. IEEE Access, 7, 132205-132216(2019).

[9] Xu S W, Wu Y, Wang X F. Visible light positioning algorithm based on sparsity adaptive and location fingerprinting[J]. Acta Optica Sinica, 40, 1806003(2020).

[10] Liu K H, Yan S D, Gong X L. Indoor 3D visible light positioning algorithm based on fingerprint reconstruction and sparse training nodes[J]. Chinese Journal of Lasers, 48, 0306003(2021).

[11] Zou P, Zhao Y H, Hu F C et al. Research status of machine learning based signal processing in visible light communication[J]. Laser & Optoelectronics Progress, 57, 010001(2020).

[12] Liu C, Zhang Y X. Research on visible light location algorithm based on neural network and fingerprint[J]. Semiconductor Optoelectronics, 40, 891-895(2019).

[13] Sun Y B, Huang Z, Gao R X et al. Visible light indoor localization system based on RSS[J]. Instrument Technique and Sensor, 80-84(2018).

[14] Ma Y W, Chen J L, Chen Z Z. A high accuracy and efficiency indoor positioning system with visible light communication[J]. Transactions on Emerging Telecommunications Technologies, 30, e3452(2019).

[15] Zhang H Q, Cui J H, Feng L H et al. High-precision indoor visible light positioning using modified momentum back propagation neural network with sparse training point[J]. Sensors, 19, 2324-2326(2019).

[16] Ni S C, Wang F, Han S Y et al. Two methods of accurate indoor positioning based on visible light communication system and artificial neural network[C], 1-3(2019).

[17] Zhang S, Du P F, Chen C et al. 3D indoor visible light positioning system using RSS ratio with neural network[C], 1-2(2018).

[18] Xiao J L, Yue D W, Zhao Z D et al. A visible light localization algorithm based on BP neural network optimized by genetic algorithm[J]. Journal of Optoelectronics·Laser, 30, 810-816(2019).

[19] Keskin M F, Gezici S, Arikan O. Direct and two-step positioning in visible light systems[J]. IEEE Transactions on Communications, 66, 239-254(2018).