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可见光信号传输的非线性失真补偿方法

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针对可见光通信系统在高速传输中的非线性失真问题,提出一种基于深度学习的可见光通信系统高速传输的非线性失真补偿方法.首先,通过滑动窗口提取高速帧中目标符号前后相邻的若干个符号,构建包含目标符号的上下文符号序列;然后,采用一维卷积神经网络提取上下文序列的空间特征,使用双向长短期记忆网络提取上下文序列的前后时序依赖关系.实验结果表面,所提方法对可见光信号的失真进行了补偿,降低了可见光通信系统的高速传输误码率.
Nonlinear distortion compensation method of visible light signal transmission
To address the problem of nonlinear distortion of high-speed transmission in the visible light communica-tion system,a deep learning based nonlinear distortion compensation method of high-speed transmission in the visible light communication system is proposed.Firstly,a few forward and backward neighbor symbols of the target symbol in the high-speed frames are extracted by a sliding window,which construct a context symbol sequence including the target symbol.Then,the one-dimensional convolutional neural network is used to extract the space feature of the context se-quence,and the bi-directional long short term memory network is used to extract the forward and backward temporal de-pendency.Experimental results show that,the proposed method compensates the distortion of the visible light signals,and it reduces the bit error rate of high-speed transmission in the visible light communication system.

visible light communication systemoptical techniquewireless communicationindoor communicationhigh order distortionnonlinear compensation

曹仰之、李斌

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东莞职业技术学院现代工业创新实践中心,广东东莞 523000

东莞职业技术学院电子信息学院,广东东莞 523000

可见光通信系统 光学技术 无线通信 室内通信 高阶失真 非线性补偿

广东省普通高校特色创新项目东莞职业技术学院国家双高计划电子信息工程技术专业群专项经费资助项目东莞职业技术学院国家双高计划科研骨干项目

2020KTSCX320ZXD202301ZXC202202

2024

光学技术
北京兵工学会 北京理工大学 中国北方光电工业总公司

光学技术

CSTPCD北大核心
影响因子:0.441
ISSN:1002-1582
年,卷(期):2024.50(5)