small-signal power gain 中文意思是什麼

small-signal power gain 解釋
小信號功率增益
  • small : adj 1 小 （opp large） 少 （opp large numerous） 細小的；窄小的；瑣細的；些微的；少額的（收入等）...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  • power : n 1 力，力量；能力；體力，精力；（生理）機能；〈常 pl 〉才能。2 勢力，權力，權限；威力；政權；權...
  • gain : vt 1 獲得；博得，掙得；贏得，打勝（戰爭、官司）。2 吸引；爭取…（到一邊），說服。3 （尤指通過努力...
  1. Research for the relation between small signal gain coef ficient and pump - energy density of high - power off - axis two - pass amplificati on

    離軸高功率雙程放大系統中小信號增益系數與泵浦能密度關系研究
  2. As a high - power twt, we consider the relativistic effect of the solid beam. the numerical results are given in terms of the small signal gain curve and slow - wave ration curve

    作為大功率的行波管，我們考慮了電子注的相對論效應，數值求解「熱」色散方程，得到脊加載盤荷波導幾何參數和電子注參量與小信號增益的關系。
  3. Then, a power - combiner has an output power over 1watt and a power - combining efficiency of 83 % at 34. 2 - 35. 5ghz was realized. small - signal gain and saturated output power were measured under both continuous wave and pulse wave

    利用小功率晶元設計8路開槽波導功率合成器，給出了連續波工作狀態與脈沖工作狀態的測試結果，包括通帶內小信號增益及飽和輸出功率。
  4. The study of srs in non - linear optic fiber by simulink emphatically. the initial intensities of pump beam and stokes beam are similar, and small signal gain theory needs to amend have been pointed. srs comply with the special growth law, does not have " threshold " characteristics. lt depends not only on the intensity of pump beam but also on the intensity of stokes beam itself. even if the intensity of pump beam is weak, fhe srs effect is maybe still take place. in addition, the problem about srs effect depends on the number of channels, power in each channel and space of the channels, in a dwdm system has been studied

    並著重論述了如何利用simulink研究非線性光纖光學中的受激喇曼效應，指出在光纖通信的情況兩個光束的初始強度相差不多時，小增益理論需要修正。 srs遵從特殊的增長規律，並不具有「閾值」特性。 stokes束的增長不僅依賴于泵浦波的強度，而且也和自身的強度有關系。
  5. Some important parameters, such as the small signal gain, the saturation gain and the laser output power, are described for a typical sealed - off co2 laser

    然後，對典型的封離型二氧化碳激光系統，討論了小信號增益，飽和增益以及激光的輸出功率
  6. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  7. Usually the low power operational amplifier is designed with rail to rail output stage, whose signal dynamirange is small, its output driving force is not strong, here it is designed with voltage displacement stage, and the strong driving force and the low power consumption in this circuit are achieved. with 5v single power, this amplifier consumes only several a, 100khz unity - gain frequency, achieves 80db dc open gain and 55 phase margin for a 100pf load capacitance and a 1m load resistance and other advantages

    通常設計的低功耗軌對軌輸出運算放大器中，由於信號的動態范圍比較小，它的輸出驅動能力不強，這里設計的是採用電平位移電路同時實現了電路的強驅動能力與低功耗，它具有在單電源電壓5v的條件下，靜態工作電流只有幾微安，單位增益帶寬達100k ，開環增益能達80db以上，相位裕度也能達55度，輸出源沉電流達500微安以上等優點。
  8. On the other hand the crosstalk of the wdm signal at fan - out of demultiplexer will increase with the power difference of the each channel. therefore, the gain of optical amplifier to wdm signal must have small ripple. one of the solutions is using two or more pumps with different wavelength and power according to the range of signal light to be amplified and raman gain coefficient of the fiber

    另外，各路信號光之間較大的功率差異會增加wdm通道解復用器輸出端的串話，所以光放大器對wdm各路信號光的增益要滿足一定的增益平坦度，解決該問題可以根據所要放大的wdm信號光的波長范圍和所用光纖的拉曼增益系數譜，採用多個不同波長和功率的泵浦光源進行泵浦。
  9. Automatic gain control ( agc ) circuit is a kind of automatic control circuit. it can regulate the output - signal to some specified power level or limit it to a small range while the input - signal ’ s power level is changing sharply. it is very important in communication equipments, especially in the receiving part

    自動增益控制（ agc : automaticgaincontrol ）電路是一種在輸入信號幅度變化很大的情況下，使輸出信號幅度保持恆定或僅在較小范圍內變化的自動控制電路;在通信設備，特別是通信接收設備中起著非常重要的作用。
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