Micro-LED visible light communication system based on sCAP modulation

The invention, which belongs to the technical field of communication, particularly relates to a micro-LED visible light communication system based on sCAP (Small Computer Aided Processing) modulation.The system sequentially comprises a digital-to-analog conversion unit, a signal mixing unit, a micro-LED light source, a plurality of lenses, a photoelectric detector, an analog-to-digital conversionunit and a signal processing unit. The micro-LED serves as an emission light source, the modulation bandwidth of the micro-LED can reach 230 MHz, the working current density of the micro-LED is extremely large, the average brightness of the micro-LED is very high, the communication rate of several Gbps is achieved, and the development requirement of next-generation high-speed communication is met; in addition, through the sCAP modulation mode, the effects of simplifying the system and improving the spectrum utilization rate are achieved, the spectrum can be utilized by 100%, and the spectrumutilization rate is increas