××届××专业毕业设计室内可见光ofdm通信系统调光控制技术摘要本文研究了OFDM在不同应用场景下的室内可见光通信系统，以及介绍了各种调光控制技术，并结合OFDM技术应用在可见光中领域。针对可见光通信对高速数据传输的要求，将ODM技术引入可见光通信，并针对可见光通信对传输信号极性的相关特性，研究了单极OFDM系统在可见光通信中的应用。详细分析了可见光OFDM系统的工作原理，从多个角度分析比较了几种OFDM系统的性能。为了满足可见光通信对通信和照明的双重要求，本文研究了光OFDM系统中采用的调光控制技术的系统性能和调光性能，并提出了最适合室内可见光通信的光OFDM系统的调光控制方案。结果发现。更符合节能理念的绿色照明室内VLC高速数据传输调光控制方案。本文的创新工作是将可见光通信系统的调光控制技术应用于目前国内外尚未报道的U-OFDM系统。本文提出了一种更有效的ZACO-OFDM系统，来作为OFDM传输系统应用于室内可见光领域。实践证明，该系统在不牺牲系统可靠性的前提下，可以提高系统的电能效率，节约能源。关键词：OFDM,ZACO-OFDM,ZACO-OFDM,VLC,调光控制技术作者姓名：基于OFDM的室内可见光通信系统调光控制技术ABSTRACTIn this paper,the indoor visible communication system of OFDM underdifferent application scenarios is studied,and various dimming controltechnologies are introduced,which are applied in the field of visible light incombination with OFDM technology.Aiming at the requirement of high speeddata transmission in visible light communication,OFDM technology isintroduced into visible light communication,and the application of unipolarOFDM system in visible light communication is studied according to thecorrelation characteristics of visible light communication to transmission signalpolarity.The working principle of visible light OFDM system is analyzed indetail,and the performance of several OFDM systems is analyzed and comparedfrom multiple angles.In order to meet the dual requirements of visible lightcommunication for communication and lighting,this paper studies the systemperformance and dimming performance of dimming control technology used inoptical OFDM system,and puts forward the dimming control scheme of opticalOFDM system which is most suitable for indoor visible light communication.The results were found.More in line with the concept of energy-saving greenlighting indoor VLC high-speed data transmission dimming control scheme.The innovative work of this paper is to apply the dimming control technologyof visible light communication system to the U-OFDM system which has notbeen reported at home and abroad.In this paper,a more effectiveZACO-OFDM system is proposed to be used as a OFDM transmission systemin the field of indoor visible light.Practice has proved that the system canimprove the power efficiency of the system and save energy without sacrificingthe reliability of the system.××届××专业毕业设计Key words:OFDM,ZACO-OFDM,ZACO-OFDM,VLC,dimmingcontrol technology