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采用硅光电池阵列作为接收机探测器,在Matlab/Simulink环境中建立了可见光通信(VLC)系统模型,对硅光电池阵列的U-I特性和输出功率特性进行了仿真研究,同时研究了结电容和光照度对硅光电池响应带宽的影响。研究结果表明硅光电池结电容越小,响应带宽越大,硅光电池结电容为2pF时,响应带宽最大可为10MHz,满足无线通信和无线供能复用的可见光通信系统应用要求。
The silicon photovoltaic array is used as the detector of the receiver. The visible light communication (VLC) system model is set up in the environment of Matlab / Simulink. The UI characteristics and output power characteristics of the silicon photovoltaic array are simulated. At the same time, Photovoltaic cells respond to the effects of bandwidth. The results show that the smaller the junction capacitance of silicon photovoltaic cells, the greater the response bandwidth, the silicon photovoltaic cell junction capacitance of 2pF, the maximum response bandwidth of 10MHz, to meet the wireless communications and wireless power supply multiplexing applications of visible light communication system requirements.