本文選題：室內(nèi)光通信　切入點：白光LED　出處：《蘭州交通大學(xué)》2014年碩士論文

【摘要】：室內(nèi)可見光通信是一種新型的無線通信方式，伴隨著白光LED的快速發(fā)展，白光LED照明正在逐漸代替?zhèn)鹘y(tǒng)的照明方式。正是這種綠色、高效、節(jié)能的照明方式的出現(xiàn)，，使得室內(nèi)可見光通信有了物質(zhì)基礎(chǔ)。基于白光LED的室內(nèi)可見光通信，不僅可以滿足室內(nèi)的照明需求，而且還能提供室內(nèi)的無線數(shù)據(jù)通信業(yè)務(wù)。室內(nèi)可見光通信具有無電磁輻射、保密性好、無需申請頻譜資源等優(yōu)點，作為室內(nèi)無線通信的一個強有力的補充，既可以實現(xiàn)在家庭、辦公場所與白光LED照明系統(tǒng)的整合，達(dá)到照明與通信的目的，也可以滿足在飛機(jī)機(jī)艙、醫(yī)院等對電磁輻射比較敏感的區(qū)域內(nèi)，實現(xiàn)無線通信的需求。 本論文主要對基于WDM技術(shù)的RGB-LED型可見光通信系統(tǒng)進(jìn)行研究。本文首先對白光LED的組成結(jié)構(gòu)、發(fā)光原理，以及在其在正常工作時的光學(xué)特性和電學(xué)特性做了較為詳實的闡述與分析。對涉及到本設(shè)計中使用的調(diào)制技術(shù)，信道模型，噪聲模型進(jìn)行了說明，并且給出一個基于光照強度和接收功率的光源布局方式。ISO(國際標(biāo)準(zhǔn)化組織)給出了對于一般辦公室照明要求光照度在300勒克斯到1500勒克斯之間。所以在滿足光照度不低于300勒克斯的前提下，設(shè)計一個能夠滿足高速通信的數(shù)據(jù)傳輸系統(tǒng)。 本設(shè)計將WDM技術(shù)引入室內(nèi)可見光通信系統(tǒng)中，利用RGB型LED作為發(fā)射光源，使用OOK-NRZ進(jìn)行編碼調(diào)制，利用一個低成本的設(shè)計方案實現(xiàn)了整個通信系統(tǒng)的設(shè)計。在本文中，給出了整個通信系統(tǒng)的設(shè)計框圖，并對每部分的設(shè)計和選型原則進(jìn)行分析說明。在文章的后半部分，對設(shè)計好的實驗平臺進(jìn)行仿真與測試，給出實驗結(jié)果,經(jīng)過測試，該傳輸系統(tǒng)可以達(dá)到設(shè)計的預(yù)期目標(biāo)，即單色最高50kHz，三色150kHz的傳輸速度。最后對實現(xiàn)結(jié)果進(jìn)行分析與總結(jié)。
[Abstract]:Indoor visible light communication is a new wireless communication mode. With the rapid development of white light LED, white light LED lighting is gradually replacing the traditional lighting mode.It is this kind of green, high-efficiency, energy-saving lighting that makes the indoor visible light communication have the material foundation.Indoor visible light communication based on white LED can not only meet the indoor lighting requirements, but also provide indoor wireless data communication services.Indoor visible light communication has the advantages of no electromagnetic radiation, good confidentiality and no need to apply for spectrum resources. As a powerful supplement to indoor wireless communication, it can realize the integration of home, office and white LED lighting system.To achieve the purpose of lighting and communication, it can also meet the needs of wireless communication in aircraft cabin, hospital and other areas sensitive to electromagnetic radiation.This thesis mainly studies the RGB-LED visible light communication system based on WDM technology.In this paper, the structure of white LED, the principle of luminescence, and the optical and electrical properties of white LED in normal operation are described and analyzed in detail.The modulation technology, channel model and noise model used in this design are described.The ISO (International Organization for Standardization) gives a light source layout based on light intensity and received power. ISO (International Organization for Standardization) shows that the illumination required for general office lighting is between 300 lux and 1500 lux.So a data transmission system which can satisfy high speed communication is designed on the premise of illuminance not less than 300 lux.In this design, the WDM technology is introduced into the indoor visible light communication system, the RGB type LED is used as the emitting light source, the OOK-NRZ is used to code and modulate, and a low-cost design scheme is used to realize the design of the whole communication system.In this paper, the design block diagram of the whole communication system is given, and the design and selection principles of each part are analyzed and explained.In the second half of the paper, the designed experimental platform is simulated and tested, and the experimental results are given. After testing, the transmission system can achieve the expected goal of the design, that is, the transmission speed of monochromatic maximum 50 kHz, tricolor 150kHz.Finally, the implementation results are analyzed and summarized.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 翁曉東;燕奇;宋占偉;賀琨;;基于LED光通信的按需路由協(xié)議實現(xiàn)[J];吉林大學(xué)學(xué)報(信息科學(xué)版);2010年06期

2 丁德強;柯熙政;李建勛;;VLC系統(tǒng)的光源布局設(shè)計與仿真研究[J];光電工程;2007年01期

3 魯輝,榮健;一種新型室內(nèi)無線光通信系統(tǒng)結(jié)構(gòu)[J];光通信技術(shù);2005年05期

4 胡國永;陳長纓;陳振強;;白光LED照明光源用作室內(nèi)無線通信研究[J];光通信技術(shù);2006年07期

5 榮健;魯輝;強世錦;;室內(nèi)無線光通信信道分析[J];光通信研究;2007年01期

6 林岳;葉烈武;劉文杰;呂毅軍;;二分法優(yōu)化計算LED光源相關(guān)色溫[J];光學(xué)學(xué)報;2009年10期

7 丁德強;柯熙政;;一種通用白光LED數(shù)學(xué)發(fā)光模型研究[J];光學(xué)學(xué)報;2010年09期

8 遲楠;王源泉;王一光;黃星星;陸肖元;;Ultra-high-speed single red green blue light-emitting diode-based visible light communication system utilizing advanced modulation formats[J];Chinese Optics Letters;2014年01期

9 周洋;劉耀進(jìn);趙玉虎;;LED可見光無線通信的現(xiàn)狀和發(fā)展方向[J];淮陰工學(xué)院學(xué)報;2006年03期

10 劉堅斌,李培咸,郝躍;高亮度GaN基藍(lán)光與白光LED的研究和進(jìn)展[J];量子電子學(xué)報;2005年05期

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