optical communication 中文意思是什麼

optical communication 解釋
光定通信
  • optical : adj 眼的；視覺的；視力的；幫助視力的；光學（上）的。 optical activity 【物理學】旋光性。 an optic...
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  1. Lc apparatus almost meet all the needs of space optical communication such as weight, size, power consume, life, cost, driving voltage, intergration of optics and electricity, programe, optically take ? over aperture, beam scanning, deflexional range and so on. switches, deflexional facilities and scanning equipments which made with lc have been used in the system of labor in space communication. the only bug of lc apparatus is that their answer speed only get microsecond rate or submicrosecond rate. but it is practical for them to be used in special beam capture, scan, deflexion controling which don ’ t concerned with code rate and code type

    液晶器件幾乎滿足空間光通信的所有大的指標要求如重量、尺寸、功耗、壽命、成本、驅動電壓、光電集成、可編程性、光學接收孔徑、光束掃描和偏轉范圍等等。液晶光開關、光偏轉器、光掃描器已經開始應用於光纖通信的實驗系統中。液晶類器件應用於光通信的唯一重大缺陷，是其響應速度目前只能達到微秒級或亞微秒級，不過，在不涉及到碼型碼率的空間光束捕獲、掃描、偏轉、控制方面，液晶器件完全可能進入實用化。
  2. Optical communication system long - haul terrestrial local interoffice

    長途干線局間中繼光通訊系統
  3. Optical communication system, long - haul terrestrial local interoffice

    長途干線局間中繼光通訊系統
  4. A new laser source of optical communication, erbium - ytterbium codoped phosphate glass waveguide laser that was provided with more prominent performance than semiconductor distribution feedback ( dfb ) laser, has been investigated globally from 1990s. the laser can meet many rigorous demands of wdm systems. the 1. 54 m laser emitted by the laser accords with the interrelated standard of international telecommunications union ( itu ), therefore, a splendent foreground can be predicted about this kind of laser in future optical communication

    基於鉺、鐿摻雜磷酸鹽玻璃基片的光波導激光器是一種新型通信光源，具有傳統的分佈反饋半導體激光器所不能比擬的優點，能滿足波分復用/密集波分復用技術對光源提出的諸多高新要求，所發射的1 . 54 m激光符合國際電信聯盟規范，在未來光通信中有著廣闊的發展前景。
  5. Actively mode - locked erbium - doped fiber lasers ( edfls ) with a high repetition rate and multi - wavelength fiber lasers are attractive optical sources in future ultra - high speed and all - optical communication systems

    多波長摻鉺光纖激光器（ mw - edfls ）可以同時為多個波長通道提供所需光源，被認為是未來長距離大容量的光纖通信系統的理想光源。
  6. Analysis of indoor wireless optical communication channels

    室內無線光通信通道分析
  7. Performance requirement for machinery electrization installation of fiber - optical communication equipment. machinery installation requirement for fiber - optical communication equipment of stationary ground

    光纖通信設備機械電氣安裝技術要求.地面固定式光纖通信設備機械安裝要求
  8. Performance requirement for machinery electrization installation of fiber - optical communication equipment. electrization installation requirement for fiber - optical communication equipment of stationary ground

    光纖通信設備機械電氣安裝技術要求.地面固定式光纖通信設備電氣安裝要求
  9. The four - state optical communication principle is established, and the encoder and decoder are designed

    提出了四值光通信的基本原理，設計了相應的光編解碼器。
  10. Fiber optical communication system

    光纖通訊系統
  11. With the development of communication technology, nonlinear optical loop mirrors ( nolm ) are widely used in high - speed fiber optical communication systems due to their special advantages

    隨著光通信技術的不斷發展，光纖環形鏡以其特有的優點已經在當今高碼率、大容量光纖系統中得到廣泛應用。
  12. National laboratory on local fiber - optic communication networks advanced optical communication systems, school of electronics engineering and computer science, peking university, beijing, 100871

    北京大學信息科學技術學院，區域光纖通信網與新型光通信系統國家重點實驗室，北京， 100871
  13. Development of freespace optical communication system based on internet transmission

    電介面以太網傳輸大氣激光通信系統的研製
  14. Because of its competitive properties fiber comes to be the top choice and becomes the major form of networking. the key technique of optical network is optical & electronic media converters. with the advent of the new phase of full - optical communication, the terms " g bit / s " " hot - pluggable " and " diagnostic monitoring " have already begun to creep into the popular vocabulary

    光通信的核心技術在於光器件和光電器件技術，具有小型化、熱插拔功能和自診斷功能等三大特點的千兆sfp收發器將代替sip和gbic成為千兆收發器市場的主流，是通信用光電器件發展的必然趨勢。
  15. Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section

    在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。
  16. 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。
  17. Development level and trund of optical communication active device

    光通信有源器件發展水平與趨勢
  18. To study blue - green laser light scattering and polarization status changes in the ocean, is used to resolve the relative problem of optical communication, detection and imaging under water. in the paper, sea water characteristic of absorption and scatter - ing, and intrinsic optical character and extrinsic optical character of sea water are summed up ; the scattering theories of sea water, including rayleigh scattering, mie scattering by spherical particles and polarization theories of mie scattering, are described in detail

    研究藍綠激光在海水中的散射特性以及由散射引起的退偏現象，是為了解決水下通信、探測、成像的相關問題。本文綜述了海水對光的吸收、散射特性以及海水的內在光學性質和外在光學性質;詳細介紹了海水的散射理論，包括瑞利散射、 mie散射以及mie散射的偏振理論。
  19. With the increasing requirements for detecting distance, photoelectric module, including light source and modulation, can be put under water to reduce the loss of light power in the optical fiber transmission and transmit the detected signal to the signal processing workstation on the shore. optical transceivers must be applied to realize the low - rate optical communication between the workstation on the shore and the long - distance photoelectric modules under water

    隨著光纖水聽器陣列技術的發展，可將光源與調制部分作為遠程光電模塊置於水下，減少光纖傳輸過程中光波信號的損耗，而直接將光纖的探測信號傳回岸基工作站進行處理，以增加光纖水聽器的探測距離。
  20. Research of the design method and some important concepts for spacetoground optical communication

    空-地激光通信鏈路總體設計思路及重要概念研究
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