[1] [1] LV W L, YAN W. Voice transmission system based on visible light com-munication technology[J]. International Core Journal of Engineering, 2021, 7（7）: 419-427.

[2] [2] CHEN Y, REN ZM, HAN Z, et al. LED based high accuracy indoor visible light positioning algorithm[J]. Optik, 2021, 243: 166853-22-166853-24.

[3] [3] WU J B, AHMED H S, MUHAMMAD I, et al. Li-pos: a light position-ing framework leveraging OFDM for visible light communication [J]. Sen-sors（Basel, Switzerland）, 2021, 21（13）: 4310-1-4310-14.

[6] [6] XU J J, GONG C, XU Z Y. Experimental indoor visible light position-ing systems with centimeter accuracy based on a commercial smartphone camera[J]. IEEE Photonics Journal, 2018, 10(6): 1-17.

[7] [7] YANG Y F, JIANG M Z, ZHANG Y, et al. Design of full duplex visible light communication system based on single light source [J]. Laser & Opto-electronics Progress, 2019, 56(1): 1-9.

[11] [11] LIU L M, LI S, LI Q, et al. Faster-than-Nyquist signaling based adap-tive modulation and coding [C]//IEEE. Proceedings of 2018 10th International Conference on Wireless Communications and Signal Processing (WCSP). Hangzhou: IEEE, 2018: 1-5.

[12] [12] ZHANG J, YU J, CHI N. Generation and transmission of 512-Gb/squad-carrier digital super-nyquist spectral shaped signal[J]. Optics Express,2013, 21(25): 31212-31217.

[19] [19] WANG B, CAO M H, MA Y K, et al. Design of wireless optical high-definition video transmission system [J]. Digital Communication World,2021(6): 85-87, 105.