optical transmission medium 中文意思是什麼
optical transmission medium
解釋
光傳輸介質- 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...
- transmission : n 遞送；傳遞；傳達；傳染；移轉；【機械工程】傳動；傳遞；變速器；聯動機件；【無線電】傳送；發射；...
- medium : n （pl dia ）1 媒介物；傳導體；媒質，基質，介質，介體；中間物；環境、生活情形。2 手段，方法；媒介...
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Abstract : analyzes the performance of unipolar ocdma system using optical orthogonal code ( ooc ) considering the dispersion and nonlinearity effect of the transmission medium. theoretical analysis demonstrates that dispersion and nonlinearity effect deteriorate the system performance. the performance of ocdma system assuming dispersion - shifted fiber as transmission medium is very close to the case neglecting the dispersion and nonlinearity effect. assuming rz initial pulse and optical hard limiter are also possible solutions
文摘:分析了基於光正交碼（ ooc ）的光碼分多址系統的性能.數值結果表明：與以前忽略光纖通道對系統性能的情況相比，在考慮了光纖的色散和非線性效應以後，系統性能有了明顯的下降.給出了一些建議方案來遏制由色散和非線性效應引起的系統性能惡化 -
Many advantages make optical fiber suitable used as transmission medium of high - rate broadband services, such as broad transmission band, large capacity, low loss, strong immunity to interference etc. among optical access network, passive optical network ( pon ) is paid more attention throughout the world. it offers easily upgraded and low cost of lay, ope ration and maintenance. especially passive optical network based on atm ( atm - pon ) integrates the capability of supporting multiple qos services with atm and transparent transmission with pon
在光纖接入網中，無源光網路（ pon ）由於不採用有源節點、敷設和運行維護成本低且成本共享、對業務透明、易於升級等優點而備受世界各國的關注，特別是以atm為基礎的無源光網路（ atm - pon ） ，由於結合了atm多業務、多比特率的支持能力和pon的透明寬帶傳送能力，將成為實現未來寬帶接入乃至最終實現ftth的重要方式。 -
This part firstly studies the relation between spectral transmission of the optical system and the thickness of medium. then a linear search algorithm base on analysing of the shape of curve is discussed. the simulation results show that the fitting error and the computing time of the algorithm satisfy the practical measuring requirements
本論文首先討論了光譜透過率與各向異性介質厚度之間的數學關系，然後在分析曲線形態基礎上進行全值匹配，模擬表明，該演算法可以實現曲線完全擬合，擬合時間均在1秒以內，完全符合實際測量要求。 -
If a optical anisotropic medium wafer is put into the mid of a polarizer and a analyser, the spectral transmission of the optical system can calculated. the transmission is determine by the birefringence and the thickness of the medium
對各向異性介質處于透光軸相互正交的兩個偏振片之間構成的光路，其光譜透過率與介質的延遲量有關，即與介質的雙折射特性和厚度有關。
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