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Experimental Research on Underwater Visible LightTwo-way Voice Communication based on PIN

Guangtongxin Yanjiu, 2022-06, p.65-71 [Peer Reviewed Journal]

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Title:
Experimental Research on Underwater Visible LightTwo-way Voice Communication based on PIN
Author: LIU Jie-hui ; HE Ying ; HU Feng ; GAN Ruo-hong ; GAN Zhi-yu
Subjects: VLC; underwater channel; voice communication; attenuation coefficient
Is Part Of: Guangtongxin Yanjiu, 2022-06, p.65-71
Description: Aiming at the problems of limited communication distance and low transmission rate of underwater radio frequency communication system, Visible Light Communication (VLC) system provides a solution for underwater medium and long distance high-speed wireless communication. In this paper, the underwater short-range channel model is estimated by using the sample water quality test. A test method of attenuation coefficient of short-range optical medium is proposed, and an underwater VLC system is developed. The direct-current bias circuit is designed according to the volt ampere characteristics of Light Emitting Diode (LED), and its spectrum response is analyzed. The underwater full duplex audio experiment with blue 465 nm and white light source is carried out in a water tank. The experimental results show that when the rated optical power is 1 W, the receiving end adopts S6968 silicon Positive Intrinsic Negative (PIN) photodetector, and the system can carry out full duplex communication in the sample water (denote
Publisher: 《光通信研究》编辑部
Language: Chinese
Identifier: ISSN: 1005-8788
Source: DOAJ

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