基于压缩感知的可见光通信信号检测方法  

A visible light communication signal detection method based on compressive sensing

作　　者：许癸驹 费莉 曾国庆 滕宇萍 XU Guiju;FEI Li;ZENG Guoqing;TENG Yuping(Communication and Information Engineering,Chongqing College of Mobile Communication,Chongqing 401520,China)

机构地区：[1]重庆移通学院通信与信息工程学院,重庆401520

出　　处：《激光杂志》2025年第1期191-195,共5页Laser Journal

基　　金：重庆市教委科学技术重点项目(No.KJZD-K202002401)。

摘　　要：可见光通信信号应用场景不同,为满足可见光实际应用场景实现信息的传输与接收,提出基于压缩感知的可见光通信信号检测方法。该方法先建立可见光通信信道模型,利用该模型获取当前可见光通信信号后,使用压缩感知算法对可见光通信信号进行稀疏表示、非线性采样处理和可见光通信信号特征重构后,得到不含高斯白噪声的可见光通信信号,再对可见光通信信号特征参量进行主分量分析,获取可见光通信信号中不同信号特征,依据该特征对可见光通信信号进行调制后,得到可见光通信信号检测结果。实验结果表明:该方法建立的可见光通信信道模型能够准确获得当前环境中的可见光通信信号,且对可见光通信信号实施压缩感知重构后,可有效去除信号中含有的干扰噪声,并可准确检测到可见光通信信号中不同类型的通信信号,应用效果显著。The application scenarios of visible light communication signals are different.In order to achieve information transmission and reception in practical visible light application scenarios,a visible light communication signal detection method based on compressive sensing is proposed.The method first establishes a visible light communication channel model,and obtains the current visible light communication signal,uses the compressed sensing algorithm,obtains the visible light communication signal without Gaussian white noise,analyzes the main component analysis of the visible light communication signal characteristic parameters,and obtains the different signal features of the visible light communication signal in the visible light communication signal.Then,principal component analysis is performed on the characteristic parameters of the visible light communication signal to obtain different signal features within the visible light communication signal,After modulating the visible light communication signal based on this feature,the detection result of the visible light communication signal is obtained.The experimental results show that the visible light communication channel model established by this method can accurately obtain the visible light communication signal in the current environment.After implementing compressed sensing reconstruction on the visible light communication signal,the interference noise contained in the signal can be effectively removed,and different types of communication signals in the visible light communication signal can be accurately detected.The application effect is significant.

关 键 词：压缩感知 可见光 通信信号 检测方法 特征参量 信号调制 

分 类 号：TN911[电子电信—通信与信息系统]