預放大 的英文怎麼說

中文拼音 [yùfàngdà]
預放大 英文
preamplification
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 放 : releaseset freelet go
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. This article firstly describes the structure and operational principle of a flash memory and analyzes the commonly used structures of its peripheral circuits. . . sense amplifier. then emphasizes on illustrating the design of two novel structures of sense amplifier applied in a 3v full - cmos flash memory, and then simulate them using innosis 0. 15um process technology and obtain satisfying simulation results under different conditions

    然後著重論述了兩種應用3v全cmosflashmemory中的全新結構靈敏放大器，並用innosis0 . 15 m工藝，對其進行模擬，得到了不同條件下的模擬結果，結果表明新設計的全新靈敏放大器具有電路結構簡單，讀取速度快等優點，完全能夠滿足flashmemory的要求，達到了預期的目標。
  2. Film 35 mm ; preamplifier for optical sound, general data for measuring

    35mm膠片.光學聲音的預放大器.測量用一般數據
  3. It uses amplitude predistorter to recompose amplifier am / am characteristic and then to inverse, and uses phase predistorter to recompose am / pm characteristic

    該技術使用幅度預失真器擬合放大器的am / am特性並求逆，相位預失真器擬合am / pm特性。
  4. Effect of amplified spontaneous emission in heaven - i pre - amplifier

    天光一號預放大器中的放大自發輻射效應
  5. Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed

    其後，在具體的子adc設計中，對比各比較器類型的優缺點，並基於預放大鎖存快速比較理論，提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制，在回饋噪聲對輸入參考電平的影響和功耗之間折衷，確定優化的參考電阻串阻值;根據不同級精度的編碼要求，設計出時鐘控制編碼電路。
  6. 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。
  7. Based on the research and analysis of system structure of 10 - bit 100msps pipelined cmos adc, according to the system performance, the specifications of sub _ adc is obtained, while the sub _ adc including the preamplifier - latch comparator, the reference ladder resistance and the clock - control encode circuits are discussed in detail

    基於對10 - bit100mspspipelinedcmosadc系統結構的分析研究，結合系統性能確定了子adc的指標要求，詳細討論並設計了子adc單元模塊的設計，包括預放大鎖存比較器，參考電阻串和時鐘控制編碼電路。
  8. 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。
  9. The predistortion, which aims at compensating for the nonlinear distortion caused by the power amplifier, has a good performance in eliminating the nonlinear distortion of am / am & am / pm, improving the aci and spectrum efficiency

    預失真技術是針對射頻功率放大器非線性而提出的一種補償技術，可以有效消除由非線性造成的傳輸信號的幅度和相位失真，降低信號鄰道干擾（ aci ） ，提高頻譜利用效率。
  10. The wave - front aberration ' s cumulating of optics elements in multi - pass amplifying system was researched more deeply. considering the correlation between optics elements " wave - front aberrations caused by the similar fabrication technique, the correlation coefficient was adopted to revise calculation rule of superimposition which used in estimating system ' s static wave - front aberration and allocating optical machining precision. 3

    進一步研究了多程放大系統中光學元件波前誤差的疊加規律，並考慮到釹玻璃片加工工藝的相似性所導致的波前相關性，將相關系數耦合到波前誤差疊加公式中，使修正後的公式能更準確地預估系統靜態波前和分配光學元件加工精度要求； 3
  11. Traveling wave tube ( twt ) is a kind of broad - band, high powerh, high gain microwave millimeter wave amplifiers. they are widely used in communication, electronic warfare, rader system and microwave directional power weapon, taking an irreplaceable role in modern military electronic equipments and communication

    行波管是一種高增益的寬帶/毫米波功率放大器件，廣泛應用於數據通訊、電子對抗、預警飛機、火控雷達、精密制導，在現代軍事電子裝備中顯示出不可取代的重要作用，是國家重大專項的核心電子器件。
  12. In this paper, we considered both efficiency and linearization, and take the scheme of self - reaction control module plus predistortion and feed - forward technologies to improve the high power amplifier ’ s linearity

    在本課題中，兼顧了效率及線性度，採用自適應預失真前饋復合線性化系統來改善高功率放大器的線性度。
  13. From the viewpoint of the interactive relationship between modern pension scheme and productivity, this paper observed the function and prospect of occupational pensions in china within a background consisting of population structure, labor productivity, and finance environment, utilized simulation and scenario analysis in actuarial models to estimate and analyze the effect of occupational pensions in the replacement rate of urban retired employees, then pointed out the magnification effect of occupational pensions in increasing the replacement rate and the higher efficiency in improving retirement income of urban retired employees. it also predicted the size expectation of occupational pensions during 2002 - 2010 in china, described the function of occupational pensions in developing the capital market and improving the labor productivity, especially emphasized the higher probability of occupational pensions to play the role of institutional investors compared with basic pension. in short, this paper proved the positive meaning of developing occupational pensions from micro - level and macro - level respectively, and brought forward corresponding policy suggestions

    本文立足於現代社會養老保險制度與生產力之間的互動關系這一視角，把對我國企業年金作用與發展空間的考察置於包括人口結構、勞動生產率、金融環境等諸多因素的經濟大背景下，在精算模型中運用模擬（ simulation ）和情景分析方法，對企業年金對我國退休職工養老保險收入替代率的影響進行了定量分析和預測，指出了企業年金在提高退休職工收入替代率方面的放大作用，以及比基本養老保險在提高退休職工收入方面的更高效率；並對我國企業年金2002年- 2010年的預計發展規模做了預測，闡述了企業年金對我國發展資本市場和提高勞動生產率的意義，著重指出了企業年金較之基本養老保險基金充當資本市場機構投資者的更大可能性。
  14. The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics

    採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。
  15. The signal testing unit examines directly the production parameter - the belt " s velocity and sends out electrical signal similar to sine wave. the signal handling and analyzing unit disposes of the sensor " s output signal by amplifying, plasticisering a / d transforming and measuring and displays it digitally. after the alarming and controlling unit compares the testing signal with the standard one and analyses, it will show the normal production situation or alarm at the abnormal state and control the related equipments if it is necessary

    信號檢測單元直接檢測皮帶速度，並輸出近似正弦波的電信號：信號處理與分析單元對傳感器輸出信號進行放大、整形、 a d轉換和計算等處理，並進行數字顯示；預警、報警、控制單元將信號與標準信號進行比較，經分析后顯示正常狀態或對異常狀態進行聲、光預警、報警。
  16. During the research work, two detecting system 36 ghz and 1. 5ghz are selected respectively to obtain life - parameter signals, which are amplified and filtered in the signal preprocessor

    在研究期間，分別選用36ghz 、 1 sghz的雷達探測系統獲取生命參數信號，經信號預處理器進行放大、濾波，經a d轉換送至計算機。
  17. After a strong market performance in 2006, indonesia in particular appears vulnerable to economic softness that the country has recently been witnessing

    亞太區股市於二零零六年表現亮麗，但印尼最近出現經濟放緩的跡象，預料大市經過去年的強勁升勢後有機會回落。
  18. In the meantime, the all sub - circuits are also designed and emulated carefully including inverter, rs type flip - flop, voltage reference circuit, error amplifier, voltage comparator, sawtooth - wave generator, pwm comparator, soft activation circuit and so on. as a result, all of the sub - circuits answer the requirements. this chip has taped out with the 0. 5um mix - signal process of csmc

    本文利用cadenceeda集成電路設計工具、 spectres模擬工具，對集成電路內的各個模塊包括反相器、基本rs觸發器、基準電壓電路、誤差放大電路、電壓比較電路、鋸齒波振蕩發生電路、 pwm比較電路、軟啟動電路、驅動電路等進行了具體的設計和模擬，且達到了預先設定的指標。
  19. There are various kinds of the self - oscillations in the preamplifier system of the high power laser facility, the origins of them were analyzed in theory

    摘要分析了高功率激光裝置預放大系統內外各種自激振蕩的來源，通過理論計算和實驗驗證提出了各種自激振蕩的抑制方法，並在實踐中得到驗證。
  20. Small - signal pre - amplifying circuit for microwave - induced thermoacoustic tomography

    微波熱聲成像弱信號預放大電路
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