色散限制 的英文怎麼說

中文拼音 [shǎisǎnxiànzhì]
色散限制 英文
dispersion-limited
  • 色 : 色名詞[口語] （顏色） colour
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
  1. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  2. With dispersion, xpm can induce intensity fluctuations and timing jitter of the pulses in the receiver. it can also cause the spectral spreading of the channel so that crosstalk is introduced. all these effects put a tight limit on the capacity of the systems

    它與色散共同作用，會導致接收端光脈沖的變形（強度起伏） 、光脈沖的時間抖動以及通道的頻譜擴展，這些後果都會限制系統的性能。
  3. Because of using of edfa, the attenuation of fibers was not an important transmission limitation. at the same time, dispersion managements and dispersion - supported techniques can be used to improve wdm system performances

    由於edfa的實用化，光纖損耗對系統的限制已不是重要的因素了；同時，色散管理和色散支持技術可以有效地改善色散對系統性能的限制。
  4. Because of using of edfa, the allenuation of fibers was not an important transmission limitation. at the same time, dispersion managements and dispersion - supported techniques can be used to improve wdm system performances

    由於edfa的實用化，光纖損耗對系統的限制已不是重要的因素了；同時，色散管理和色散支持技術可以有效地改善色散對系統性能的限制。
  5. However, owing to the assumptions of weak dispersion and weak nonlinearity, the standard boussinesq equations derived by peregrine are restricted to shallow water areas and to small nonlinear

    但經典boussinesq方程（ peregrine ）只具有弱非線性和弱色散性，限制了其僅適用於淺水區域和弱非線性效應情況。
  6. Because of the appearance of erbium doped fiber amplifier ( edfa ), the problem of optical fiber loss has been solved basically. then people ' s attention is more and more concentrating on the research of the optical fiber communication system which is limited by optical fiber dispersion instead of that which is limited by optical fiber loss

    由於摻鉺光纖放大器（ edfa ）的出現，基本上解決了光纖損耗問題，從而使人們的注意力越來越多地從受損耗限制的光纖通信系統轉向受色散限制也即受帶寬限制的光纖通信系統的研究。
  7. Compared with green light - emitting device, blue oled has many problems such as brightness, efficiency, stability, and color saturation, in this study we investgaited the blue oleds systemically : 1 ) double heterosturcture oled was charaterized. due to the introducing of electron transport layer alq3 and hole - blocking layer balq3, the energy matching was more reasonable and the carrier injecting was more effective in the double - layer device. the maximum efficiency and luminance of this device attained to 1. 90 lm / w and 10, 000 cd / m2, respectively

    其次，由於一直以來藍光oled器件的研究處于相對落後的狀態，其發光亮度、效率、穩定性和色純度都無法綠光器件相比，所以本論文在以下幾個方面對藍光器件的性能進行了系統的研究: 1 ）研究了雙異質型藍光oled器件，由於本研究引入了空穴阻擋層，使得載流子的復合和激子的擴散被限定在發光層內，器件的發光效率達到了1 . 90lm / w ，最大亮度達到了10000cd / m2 ，比傳統結構器件的效率和亮度提高了約一個數量級; 2 ）制備了結構為ito / npb / balq3 / alq3 / mg : ag的oled器件，研究發現，當改變各有機層厚度時，器件的電致發光光譜發生了從綠光到藍光的移動。
  8. The article elaborates on medical treatment insurance integrated services network mis at last, especially details the issues in actualizing it : the strategy of network security, the technique of popedom management, the technique of multilayer - distributing bases on groupware, encrpytion checkout, the mode of popedom management bases on roles, audit and control of operation - log, and theory of closed loop safety control

    文章最後結合醫保綜合業務網路管理信息系統實例加以詳細說明，尤其在實施過程中採用了網路安全策略，權限管理技術，基於組件的多層分散式技術，加密校驗，基於角色的權限管理方式，操作日誌審計監控，閉環安全控制理論等問題進行了詳細的探討。
  9. Then the theoretical computing methods are presented, in which we emphasize particularly on the plane wave method ( pwm ) and the finite element method ( fem ). with the two methods mentioned above, important parameters such as bandgap, dispersion, leaky loss and so on are calculated, as well as the birefringence of two kinds of mf, which are in two different mechanisms. a new type of optical coupler based on dual - core bandgap microstructure fiber is presented

    主要研究內容如下: 1 、利用平面波展開方法和有限單元方法研究了微結構光纖的傳導特性，對三角形、蜂窩形柵格空氣孔包層結構的光子能帶進行了研究，在此基礎上闡述了光子晶體光纖的傳導機制，對折射率引導和光子帶隙引導微結構光纖的波導色散、泄漏損耗和有效模場面積進行了研究。
  10. Secondly, the human body is simulated by a model with inhomogeneous dielectric constant and conductivity hi the fdtd program to calculate the effect of stable plane wave to the human body, hi the same time the mode can be used hi ( fd ) 2td programmed to calculate the effect of electromagnetic pulse to the human body by using debye parameter

    主要包括以下幾部分內容：首先，編制fdtd （時域有限差分法）和（ fd ） ~ 2td （色散時域有限差分法）程序，並驗證了這兩個軟體的有效性。其次，建立了解析度分別為4 . 25mm和1 . 31cm的實際人體電磁參數模型和色散電磁模型，建模過程中採用了圖象處理技術。
  11. Especially, linbo _ 3 optical modulators, using m - z waveguides and traveling - wave electrodes, are essential for high - speed and long - haul optical fiber transmission systems since the wavelength chirp is very small and the effect of the fiber dispersion is minimized

    採用行波電極的m - z型外調制器調制速率高，波長的啁啾噪聲理論上為零，幾乎不受光纖色散的限制，已成為高速長距離光纖傳輸系統必不可少的器件。
  12. Especially, linbo3 optical modulators, using m - z waveguides and traveling - wave electrodes, are essential for high - speed and long - haul optical fiber transmission systems since the wavelength chirp is very small and the effect of the fiber dispersion is minimized

    採用行波電極的m - z型外調制器調制速率高，波長的啁啾噪聲理論上為零，幾乎不受光纖色散的限制，已成為高速長距離光纖傳輸系統必不可少的器件。
  13. The characteristics of the optical fiber transmission theory are offered, and pointing out emphatically the loss and the chromatic dispersion is the main performance indexes which influence the optical fiber transmission. the loss limits the distance of the optical fiber transmission systematic, the chromatic dispersion limits the capacity of systematic transmission

    2 .分析了光纖傳輸特性，並著重指出了損耗和色散是影響光纖傳輸的主要性能指標，損耗限制系統的傳輸距離，色散則限制系統的傳輸容量。
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