自益放大器 的英文怎麼說

中文拼音 [zìyìfàngdàqì]
自益放大器 英文
bootstrap amplifier
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 益 : Ⅰ名詞1 （好處） benefit; profit; advantage 2 （姓氏） a surname Ⅱ形容詞（有益的） beneficialⅢ動詞...
  • 放 : releaseset freelet go
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 放大器 : amplifier; pantograph; lawnmower; enlarger; magnifier
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. The auto - control of photometer preamplifier gain

    分光光度計前置放大器自動增益控制
  2. And i finished the layout design, chip test of line driver and equalizer in 2. 5gbps baseband copper cable transceiver and equalizer in the 1. 5gbps sata transceiver respectively. the main improvements and innovations in this thesis are as follows : 1 、 to design an analog equalizer tuned on - chip for 2. 5gbps baseband copper cable transceiver ; 2 、 to present an adaptive equalizer for 1000base - cx transceiver ; 3 、 to present an auto - gain control amplifier used in the adaptive equalizer for the 1000base - cx transceiver ; 4 、 to present an adaptive continuous - time gm - c filter in very high frequency for the adaptive equalizer for the 1000base - cx transceiver

    論文主要的改進和創新有： 1 、設計了適用於2 . 5gbps基帶銅纜收發器系統片上可調的模擬均衡器電路； 2 、提出了一種新的適用於千兆以太網基帶銅纜收發器系統的自適應均衡器結構； 3 、設計了甚高頻自動增益控制放大器； 4 、設計了一種適用於千兆以太網基帶銅纜接收器均衡的自適應甚高頻連續時間gm - c二階帶通濾波器。
  3. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。
  4. The adm system mainly includes a oscillator, a clock generator, an amplifier, a pre - amplif ier, a comparator, an agc ( automatic gain control ), an adm analyzer & synthesizer, a d / a converter and a lowpass filter

    整個系統包括：內置振蕩器，時鐘產生器，放大器，前置運算放大器，比較器， agc （自動增益控制器） ， adm分析綜合器，數模轉換器以及低通濾波器。
  5. 4. according to the analyses of underwater acoustic channel and long - range remote control receiving system, we designed the long - range remote control receiver, including a low noise prefix - amplifier, a band pass filter and an auto - gain control circuit. finally, the analog part of the receiver is tested and the frequency response of this receiving system is obtained.

    結合對水聲通道特性和遠程遙控接收系統的分析，進行了遠程遙控接收機的設計，包括接收機低噪聲前置放大器的設計、帶通濾波器電路的設計和集成以及自動增益控制電路的設計，最後對接收機模擬電路進行了調試。
  6. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。
  7. 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。
  8. This subject aim at designing a linear power amplifer whose output power is 40w for 225 - 450mhz band. but it seems not easy to finish the task because of this power amplifier own unique requirements including high output power, broad working frequency band, high linearity, and flat gain. due to the complexity involved, theoretically several soltuions are derived in the final scheme such as broadband matching technology, power - retreat, power synthesize, automatic power control and negative feedback. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful

    本課題的目標是研製一個輸出功率為40w的225 450mhz的線性功率放大器。由於該功放要求輸出功率大，工作頻帶寬，帶內增益波動小，線性度高，所以其終合設計難度大。鑒于這個原因，在理論設計上筆者採用了寬帶匹配、功率合成、功率回退、負反饋、自動功率控制等技術；在實踐中精心設計電路，並且配合eda軟體模擬，最終達到所要求的指標。
  9. 2. as for the intermediate frequency part in integrated circuits ( ic ' s ), we introduce feedback automatic gain control ( agc ) loop in view of its fargoing dynamic range and convenient precision adjustment, hence stable power of fore - demodulator signal and maximum systematic gain are ensured

    2 、中頻部分採用集成電路的反饋式自動增益放大環路，動態控制范圍大，控制精度調節簡便，是系統增益的最大來源，同時也保證了中頻解調器前信號的功率穩定。
  10. The traditional methods of increasing the dynamic range of the receivers, such as sensitivity time control ( stc ), automatic gain control ( agc ), and band - pass intermediate frequency ( if ) limiting, are researched. it is pointed out the limitation of the traditional technologies in increasing the dynamic range in wideband digital ew

    （ 3 ）研究了動態范圍的相關參數，分析了擴大接收機動態范圍的常規方法，如靈敏度時間控制、自動增益控制、中頻限幅器和對數放大器等，並分別指出常規方法應用於寬帶數字ew接收機的局限性。
  11. 4. the lpfgs are used in single wavelength er - doped fiber amplifiers ( edfas ) as a spontaneous emission noise ( ase ) filter, and the gain of the edfa is increased by 7db and the noise figure ( nf ) is decreased by 0. 5db, for the first time

    4 、成功研製了摻鉺光纖放大器，首次將高頻co2激光脈沖寫入的長周期光纖光柵應用到摻鉺光纖放大器中作為自發輻射噪聲濾波器，使edfa的增益提高了7db 、噪聲系數降低了0 . 5db 。
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