放大級增益 的英文怎麼說

中文拼音 [fàngdàjízēngyì]
放大級增益 英文
stage gain
  • 放 : releaseset freelet go
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 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...
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. Seismic amplifiers are multi-stage and have very high maximum gain.

    地震放大器是多級放大器，它有很高的增益。
  2. Since ti : sappire owns many great properties, chirped pulse amplification based on ti : sappire makes rapid technical progress and many developed countries have built up 100tw - grade ti : sappire ultrashort and ultrahigh pulse laser system. optical parametric chirped pulse amplification gets great academic interests because of its many merits

    由於鈦寶石晶體的優良性能，以鈦寶石為增益介質的啁啾脈沖激光放大技術飛速發展，世界各科技大國相繼建成了百太瓦級的鈦寶石超短超強脈沖激光裝置。
  3. Entering the new historical times and developing stages of all - out efforts to construct a well - to - do society in our country, in the face of the negative effect produced toward our country ' s advanced culture development by swift and violently developing of economic globalization and information networking of the world, in the face of the quickening of market economy paces of reform and opening - up once in our country cause social life diversification and interests subject pluralism which inevitably takes shadow on the agitation and infiltration of different mind and culture, in the face of the spiritual culture need which the people increase day by day, in the face of the influence owing to western capitalist class and westernization and strategy of splitting up that hostile force adopt of decadent ideology, the advanced ideological ethical culture in contemporary china is not only confronted with historic opportunities and advantageous condition to accelerate its development, but also faced with austere challenge and trial

    在我國進入全面建設小康社會的新的歷史時期和發展階段，面對世界經濟全球化和信息網路化的迅猛發展對我國先進文化發展所產生的影響，面對我國改革開放和市場經濟步伐的加快導致社會生活多樣化和利益主體多元化所必然引起的各種思想文化的相互激蕩、相互滲透，面對人民群眾日益增長的精神文化需要，面對西方資產階級腐朽思想的侵蝕和敵對勢力所採取的「西化」 、 「分化」的戰略圖謀，當代中國先進思想道德文化既面臨加快發展的歷史機遇和有利條件，也面臨十分嚴峻的挑戰和考驗。大力發展先進思想道德文化，對于促進中國先進文化的發展，為改革開放和現代化建設提供正確的指導思想和強大的精神動力，具有重要的戰略意義。
  4. The rf receiver consists of rf front end and baseband regulation module. the high - intermediate - frequency superheterodyne structure is adopted in the final scheme. the fine sensitivity of the receiver is achieved by two cascaded lna in the front of the system

    系統採用超外差式變頻結構設計，兩級低噪聲放大單元級聯保證了接收機靈敏度，兩級增益控制單元實現了所要求的接收機動態范圍，並且整機的線性度也得到了保證。
  5. But for the final energy structure of er3 +, property of edfa ' s gain has its inherent disadvantage : edfa ' s gain is different vs wavelength, in other words, its gain spectrum is not ideally flat, so the output signal will be different if the input signal have the same power

    但是由於edfa中工作物質鉺離子能級結構的影響， edfa對光信號的放大特性也有其固有的缺陷： edfa對不同波長的光信號的增益並不完全相同，即其增益譜不平坦，因此一組強度相同的光信號經過放大后的強度會有所不同而產生偏差。
  6. Based on our theoretical predictions, we find optimal splicing parameters on fsm - 30s fiber splicer for low loss joints between erbium doped fiber and other single mode fibers. we also experimentally demonstrate a novel three - stage erbium - doped fiber amplifier with high gain, low noise figure, and high output power. finally, a prototype of a gain - clamped fiber amplifier is obtained with high gain ( 26 db ), low noise figure ( 5. 3 db ), high output power ( 17 dbm ), and large bandwidth ( 31 nm )

    文章研究了摻鉺光纖（ edf ）與其他光纖低損耗焊接問題，得到光纖熔接機低損耗熔接的最佳參數，這對摻鉺光纖放大器的科研生產具有一定的指導意義；研究了新型的三段級聯泵浦優配的摻鉺光纖放大器的優化光路結構，得到高增益，低噪聲，大輸出功率的摻鉺光纖放大器；最後研製成功高增益（ 26db ） ，低噪聲（ 5 . 3db ） ，大輸出功率（ 17dbm ） ，寬帶（ 31nm ）增益箝制摻鉺光纖放大器樣機。
  7. 2. the input stages of the ccii and the operational amplifier in transimpedance implifier are realized with folded cascode amplifier to reach high cmrr, large open loop gain and low offset

    2 .為了提高儀表放大器的電源抑制比，並得到大的開環增益，相對低的失調等性能，電流傳輸器的輸入級和跨阻放大器中運算放大器輸入級均採用折疊共源共柵放大器。
  8. The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier

    本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。
  9. The amplification characters of er3 + / yb3 + co - doped fiber are studied in our experiments. when the doped fiber length is 50cm, the amplified signal power is 170mw and the gain is 12. 2db in the case of signal power of 10. 8mw and pumping power of 2. 5w

    本論文著重研究了採用一級放大時，信號光在雙包層光纖中的放大特性，截取50cm的光纖，在輸入泵浦光功率為2 . 5w ，信號光功率為10 . 8mw時，獲得了170mw的放大信號光輸出，增益為12 . 2db 。
  10. Statistically, it makes a quantitive analysis on the evolvement of the country economic structure in xi ' an city, the economic benefit of the changes in industry structure, the effect on labor resource collacation in industry structure and the effect of the increasing income of countrymen in industry structure changes, which discloses a rule of the industry structure evolvement in country. the putting forward of the non - agriculture industry in country, especially the rapid increase in country industry will promote the rise of the country industry level for a long term. the country industry structure influences a lot the increase of the farmer ' s income which is also affected by agriculture structure and planting structure, but less. the non - agriculture industry plays a main role in the increase of farmer ' s income. for the low level of the townlization and industrialization, developing industry, construction and commercial in country is very feasible to resolve the problem of spare labors in country. it is strengthening labors transferring and reducing the modulus of labor over the infield that farmers income could be kept increasing. after a theoretical analysis and twenty years practise in the regulation of country economy structure after the reform and opening policy in xi ' an, a new thought of regulating country economy structure in xi ' an is put forward that a strategic regulation must be taken in country economy structure and the agriculture structure must be optimized. moreover, an expanding agriculture must be developed and transfer the spare labors in country effectively. so the government function during the regulation of country economy structure is transferred to : the first one, making the stress policy in the regulation of country industry structure. 2ndly, strengthening the force in regulating country industry structure ; 3rdly, making a plan on the regulation of country industry structure ; 4th promoting the optimizition and upgree of industry relying on sci - tech progress ; 5th enhancing the townlization and optimizing the country industry structure ; last one, improving the quality of labors in full scale

    本文在概述經濟結構理論的基礎上，第一次系統地研究了西安市農村經濟結構調整，用數據統計的方法，定量、定性地分析了西安市農村經濟結構演變的軌跡，分析了產業結構變動的經濟效益、產業結構勞動力資源配置效應、產業結構變動的農民收入增長效應，揭示了農村產業結構演變的規律。提出農村非農產業，尤其是高速增長的農村工業，對促進農村產業水平的提升起著長?推動力的作用；農民收入增長直接受農村產業結構的影響最大，農業產業結構、種植業結構對農民收入有影響，但作用不可高估；非農產業是農民增收的主要支撐力量，解決農村余勞動力在城鎮化、工業化水平不高的情況下，切實可行的選擇是在農村發展工業、建築業、商飲業等非農產業；農民收入要保持快速增長態勢必須加大農村勞動力轉移力度，減少耕地承載勞動力的系數。通過理論分析，結合西安市改革開放后20多年的農村產業結構調整的實踐，提出了西安市農村產業結構調整的發展思路及目標、原則，明確指出了政府在農村經濟結構調整過程中的職能轉變的重要方面：一是制定農村產業結構調整的傾斜政策，二是加大對農村產業調整的投入力度，三是制定產業結構調整的規劃，四是依靠科技進步促進產業優化和升級，五是加快城鎮化過程，優化農村產業結構。
  11. The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion

    我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡（ nolm ）相結合的方案來對信號脈沖進行壓縮整形，模擬顯示，在調節系統合適參數的情況下，波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時，最後可以得到放大的高質量超簡訊號光脈沖；在基於soa的交叉增益調制（ xgm ）全光波長轉換中，採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低，波長向下轉換的距離和反轉光的峰值能量都得到明顯提高，降低了利用交叉增益調制（ xgm ）波長轉換中對波長精度的要求，從而提高了波長轉換的靈和性。
  12. Third, rail - to - rail amplifier output stages exhibit load - dependent gain which affects amplifier open - loop gain, and hence closed - loop gain accuracy

    第三，軌到軌放大器輸出級增益與負載有關，這將影響放大器的開環增益，當然也影響了閉環增益的準確性。
  13. The power driver yields output power with a gain variation less than 1. 18db and a maximum of 1. 37 - w output power within the entire band of interest. the large - signal bandwidth of this power - driver is 1. 5ghz

    在驅動級放大器的工作頻率范圍內實測的功率增益不平坦度小於1 . 18db ，獲得的最大輸出功率（ 1 . 37w ）帶寬優於1 . 5ghz 。
  14. The 2 - stage differential transconductance amplifier is used in the design to achieve high gain. in the design of amplifier, a resister and a miller capacitor is used to deal with the stability and frequency compensation

    系統中採用差分跨導運算放大器的設計，為了保證其具備高增益與高穩定性，選用二級結構，並且增加了補償電容和電阻。
  15. Firstly, a two - stage structure for the ota is presented after comprehensive considerations on characteristics like open - loop gain, unity - gain bandwidth, phase margin and settling time. then the input and output topologies have been decided by comparing different structure available for this purpose

    首先，通過對ota開環增益、單位增益帶寬、相位裕度和建立時間等性能指標的分析，並對比了幾種典型運放結構，設計開發了一種cmos全差分共源共柵兩級運算放大器框架。
  16. They indicate this amplifier ’ s antijamming ability is very high, the gain multistage changes steadily, its temperature voltage drift is low, and the pulse linearity is good and so on

    提高了放大器抗干擾能力，使增益多級連續平穩變化，且具有溫漂低、脈沖線性好等特點。
  17. With the updating of wdm system and development of optical transition network, gain - clamped erbium - doped fiber amplifier ( gc - edfa ) fixes the problem of gain fluctuation and vibrating when input power and upload channel numbers are changing

    隨著wdm系統的升級及光傳送網路的發展，增益控制摻鉺光纖放大器（ gc - edfa ）在輸入功率和通道數目變化時維持放大器增益穩定方面，發揮著日益重要的作用。
  18. After that, this paper briefly introduced the optical splitter ' s characteristics of amplication by calculate a uniformly widen three energy level ratio equation and transmission equation. since providing these theories and results, this paper began to discuss on the material characteristic and the whole craft process in short

    然後，本文通過計算均勻加寬三能級結構的速率方程和傳輸方程，對光分路器的增益放大特性作出了一般的理論分析。在有了以上的理論計算和分析之後，本文概括地討論了製作光分路器的材料特性和工藝過程。
  19. Low noise amplifier using fet is adopted in the rf block of smart antenna both at 3. 95ghz and at 1. 9ghz. in the design process of lna, the author applies genetic algorithm in the optimization of gain and noise figure

    兩套射頻電路的低噪聲放大器電路均採用了兩級場效應管放大，在其增益及噪聲的優化過程中採用了遺傳演算法這一全局搜索性能較好的數值演算法。
  20. We decide to use seven - sections coupled - line filter after comparing the various filter circuits, and complete the quantitative analysis and optimization design by ads, hfss etc. ( 2 ) three - stages fet low noise amplifier according to the lna ’ s design theory and guide line, we decide to use ne3210s01 fet and choose the form of three - stages, thus we can achieve high stability, low noise and high gain

    通過對各種帶通濾波器電路方案進行比較，確定採用七階平行耦合微帶濾波器，並利用ads ， hfss等工具進行了定量的理論分析和優化設計。 （二）三級聯低噪聲放大器根據微波lna設計原理及指標要求，我們選用ne3210s01系列低噪聲管，並採用三級放大的形式，以期獲得高穩定性，低噪聲，高增益。
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