High Bandwidth Based on a Tapped-Delay-Line Equalization in Visible Light Communications

被引：0

作者：

Zhang Minglun ^{[1
]}

Guo Xujing ^{[1
]}

Zhu Hetian ^{[1
]}

Wang Chao ^{[1
]}

Bai Xiaonan ^{[1
]}

Zhai Xiangwen ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Minist Educ, Beijing 100876, Peoples R China

来源：

INTERNATIONAL SYMPOSIUM ON PHOTONICS AND OPTOELECTRONICS 2015 | 2015年 / 9656卷

关键词：

visible light communication; analog equalizer; tapped-delay-line filters; high bandwidth;

D O I：

10.1117/12.2197566

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the visible light communication, the white LED bandwidth severely limits the transmission rate of information. This paper presents an analog pre-equalization technology to compensate for the bandwidth of white LED. The technology not only can debug according to the actual channel changing, but also avoid the high costs of using FPGA technology. The pre-equalization technology is implemented by an analog circuit of tapped-delay-line, in the circuit we select an appropriate delay line and a digital to analog converter. In our LED visible light communication system, we can achieve a bandwidth of 150MHz, which was proved theoretically in the paper.

引用

页数：6

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