optical wireless 中文意思是什麼
optical wireless
解釋
無線光纖通訊-
Indoor wireless optical local area network ( wlan ) has advantages of wide bandwidth, strong anti - jamming and good handiness. it is the best resolution for future communications : mobility, personality, and multimedia application, and will have wide applying foreground. how to use the network bandwidth resource fairly and effectively is key to qos guarantee
在室內無線光通道中，如何公平、高效地利用網路帶寬是保障局域網通信可用性、可靠性和服務質量的關鍵所在，也正是無線光局域網媒質接入控制（ mediumaccesscontrol ， mac ）協議需要解決的核心問題。 -
Sunscan ( s. j ) is a leading manufacture developing high speed video imput storage / wireless, optical mouse / finger. print security system and semiconductor mcu software design
深圳尚傑電子-尚光科技:是一家專門研發高速影像輸入/無線.指紋鼠標/指紋防盜系統及mcu軔體開發設計 -
Dummy camera, cctv camera, optical lens, wall clock, pedometer, notebook cooling pad, mp3 case speaker, mini - tripod, wireless door bell, wireless head set. etc
（生產、經營）產品及類型介紹：模擬監控器，監控器，霧鏡，掛鐘，計步器，筆記本散熱器， mp3功放包，迷你支架，無線門鈴，無線耳機等 -
Analysis of indoor wireless optical communication channels
室內無線光通信通道分析 -
Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion
文摘:在無線光通信領域，利用非成像光學設計的集中器能夠聚集光輻射能量，而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光線追跡法對半球形集中器的性質進行了分析與研究.對好幾種非成像集中器:半球形集中器，復合拋物線形集中器，介質內部全反射集中器，多表面集中器，多相介質集中器，從設計原理、增益和視場進行比較，並分析其應用場合 -
Wireless lan based on the technology of optical diffusion communication is very practical and will be competitive in market application
基於光散射通信的無線組網技術具有較好的實用性和市場價值，是現有無線組網技術的補充和發展。 -
By adopting the optical diffusion communication technology and ppm coding theory, the paper presents a new method to build a wireless lan that is fit for broad communication with so many advantages, such as high security, huge capacity and freeing from frequency limitation
論文涉及了計算機網路通信和光通信兩個不同的技術領域，較全面地分析研究了基於光散射通信技術組網所涉及到的多方面、多學科的理論與技術。 -
In the paper, a conception of wireless lan based on the technology of optical diffusion communication is presented. by analyzing the system ' s structure and each part of the function components, the paper illustrates in detail all kinds of communication theories and protocols that are fundamental for the system ' s operation
本論文提出了基於光散射通信的無線組網新方法，給出了該通信系統的結構和功能模型，就系統涉及到的軟體協議和通信理論進行了細致的分析。 -
2. applying manchester coding theory to meet the end of collision detection and codes judgment effectively. 3. using pulse position modulation ( ppm ) coding theory that is invented especially for optical communication in the air to ameliorate the system ' s performance by improving the system ' s character of pe. 4. taking good advantages of the fledged lan communication protocols and technologies to achieve a new method that has a high rate of capability to cost in building a wireless lan
論文研究中主要的創新性工作如下： 1 、提出利用光散射通信技術組建無線局域網，方便地實現了廉價而高速的局域網內微機的光互連； 2 、採用曼徹斯特編碼技術解決了光無線通信中代碼判決和碰撞檢測的技術難題； 3 、針對空氣通道的特點，利用ppm編碼技術降低通道誤碼率、改善系統性能； 4 、在光無線局域網中利用現有的成熟有線局域網協議和技術，從而保證了系統的實用性及改善了系統的性價比。 -
1550nm is chosen as the work wavelength, cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system. the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system, beam divergence angle, pointing error, and error signal extraction. compared with existed optical wireless communication system, the design scheme proves applicable
通過對通信系統工作波長選擇、光學天線選擇等闡述，選擇了1550nm作為系統工作波長、卡塞格倫（ cassegrain ）收發合一天線作為系統光學天線；通過對apt子系統功率測算、束散角和瞄準誤差、誤差提取信號等的討論，給出了apt子系統結構和理論設計指標，並將其與現有的光無線通信系統進行比較，說明該設計方案是可行的。 -
Nonimaging concentrators in optical wireless communications
無線光通信中的非成像集中器 -
A new type of structure for indoor optical wireless communication system
一種新型室內無線光通信系統結構 -
The design and application of optical wireless technology
光無線技術設計與應用 -
These years, the use of burst mode data transmission is increasing in digital - communication systems. these systems use point - to - point and point - to - multipoint connections over optical, wireless, and coaxial media
近年來，突發模式的數據傳輸方式正在越來越多的應用於數字通信系統中，這些系統通過光纖、無線和同軸電纜等媒質實現點到多點的連接。 -
Based on the basic theories and composition of optical wireless commu - nication system, the structure design of its apt ( acquisition, pointing, tracking ) sub - system and further research on apt technical algorithm have been discussed theoretically in this thesis
本文在介紹光無線通信系統基本原理和組成的基礎上，對其apt （ acquisition ， pointing ， tracking ）子系統結構進行了理論設計，並對apt技術演算法進行了深入研究。 -
Considering the advantage of optic, using the wireless mode, optical wireless access network is a better method to solve the " last mile " problem
結合光傳輸媒質的特點、採用無線的接入手段，無線光接入網是解決「最後一公里」問題經濟合理的較佳方案。 -
Structure study of modulation waveforms in optical wireless communications
數字脈沖調制方法的符號結構分析 -
Optical wireless communication system and its applications
光無線通信系統及其應用 -
Lastly, the working theory of encoder, decoder and optical transceiver of the optical wireless lan are analyzed. the experiments about the system are done in the paper and basically realize the wireless optical lan
最後，本論文具體分析了光無線局域網系統各個組成部分，主要是光電轉換器和光收發器的工作原理，並進行了實驗製作。 -
Laser emission technology for optical wireless communication system
光無線通信系統中的激光發射技術
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