級增益 的英文怎麼說

中文拼音 [zēng]
級增益 英文
gain per stage
  • : Ⅰ名詞1 (等級) level; rank; grade 2 (年級) any of the yearly divisions of a school course; gra...
  • : Ⅰ名詞1 (好處) benefit; profit; advantage 2 (姓氏) a surname Ⅱ形容詞(有益的) beneficialⅢ動詞...
  1. Seismic amplifiers are multi-stage and have very high maximum gain.

    地震放大器是多放大器,它有很高的
  2. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器,而掌握光與介質的相互作用理論是研究激光器的關鍵,採用拉姆半經典理論為主,在密度矩陣理論的基礎上,推導環形諧振腔中描述he - ne氣體介質原子運動的光學布洛赫方程,運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組,在此基礎上,運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ,對激光陀螺中的介質色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究,並且運用全量子理論,對激光工作原理進行分析,得出二能系統單模輻射場的光子數密度分佈,得出激光場的光子統計分佈,模擬激光場的動態建立過程。
  3. In this thesis, we demonstrate the study of si - based light emitting materials and its importance in si - based photonics integration. we discussed mainly the gain, differential gain, threshold current of si - based quantum - dot laser and the dependence of threshold current on temperature from discrete energy level of three - dimension confined quantum - dot and state density distribution of 5 - function

    本文闡述了si基光發射材料的研究進展及它在硅基光電子集成中的重要地位,從三維受限量子點的分立能和函數狀的態密度分佈入手,著重討論了si基量子點激光器的、微分、閾值電流及閾值電流的溫度特性。
  4. 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的鈦寶石超短超強脈沖激光裝置。
  5. In order to make up this gap, this paper presents a differential detection scheme that serial concatenate a ldpc code to form a iterative detection cycle. moreover, under different channel conditions, simulations show that this scheme can improve the differential system performance considerably, of which may be meritorious to the applications

    所以針對這種情況,本文在第四章提出了一種聯ldpc碼的turbo差分檢測方案,並通過模擬說明,在聯不同碼率的ldpc碼下,該方案都可以使差分系統獲得明顯的性能,具有一定的應用價值。
  6. In the same way, these checks and balances provide a mechanism for managing public concern and discontent when as will inevitably happen sooner or later china suffers an economic blip, and the growing expectations of its aspiring middle classes are temporarily disappointed

    同樣,當中國遭受暫時的經濟困境,有抱負的中產階長的期望暫時受挫時這是不可避免遲早要發生的事情這種相互制衡就可以提供一種解決公眾擔憂和不滿的機制。
  7. The team of experts pointed out that the design of the zizhong countys strategic planning for the hog industry should set three goals upgraded industry, increased efficiency and strengthened competitiveness, implement five strategies the leading - enterprises - pull strategy, the infrastructure - first strategy, the scientific and technical support strategy, the brand leading strategy and the institutional safeguard strategy and comply with the central governments pace to readjust its industrial policies and attract more investment and support which the central government usually gives to state - funded projects

    專家組指出,編制資中縣生豬產業發展戰略規劃要從實現「三大目標」產業升提升競爭力強實施「五大戰略」頭牽引戰略基礎先行戰略科技支撐戰略品牌引領戰略體系保障戰略入手,緊跟國家產業政策調整步伐,爭取國家項目投入支持,徹底解決制約生豬產業發展的「瓶頸」問題。
  8. Simple gain tuning built - in 10 levels of system stiffness and on - line off - line auto gain tnuing notch filter

    內建十個等剛性表,且具備on - line off - line自動調校
  9. Result : the decision tree consisted of multiple levels of branches and color blocks to present the output and the sequence of information gathered ( e. g., length of stay > disease classification > mode of departure from the hospital > triage > medical specific ) and reflected the degree to which the distribution of medical expenses were influenced

    結果:決策樹以多層次之樹枝分佈及顏色區塊等視覺化方式呈現研究結果;其中資訊順序為(滯留時間疾病分類離院后動向檢傷分科別) ,該資訊之順序也代表屬性影響醫療費用分佈之程度,意即滯留時間為決定急診病色醫療費用多寡之首要因素。
  10. In section one, we analyze the mechanism of lwi gain, and study the effects of the rabi frequency q of the driving field, the injection rates ratio rb / r ~, the exit rate r0, the decay rates ~ and rab between atomic levels, as well as 3 incoherent pump rate r on the gain without inversion, dispersion and population difference of the system. in section two, we discuss the effects of the detuning of the driving field and the probe field on the gain

    在第一節中分析了無粒子數反轉激光產生的機制、研究了驅動場的rabi頻率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能間的自發衰減速率r _ ( c - b ) 、 r _ ( a - b )和非相干泵浦速率r對、色散和粒子數差的影響;第二節討論了驅動場和探測場的失諧對無粒子數反轉激光的影響。
  11. 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,兩低噪聲放大單元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。
  12. The high - intermediate - frequency superheterodyne structure with twice conversions is used. three cascaded agc units applies in the receiver system, one of them is used as the choice, for realizing a high dynamic range while the linearity of the system is well guaranteed

    系統採用了兩次變頻超外差式結構設計,第一中頻為高中頻。另外系統還包含了三自動控制單元,其中一agc作為選項,實現了較大的動態范圍,並且整機的線性度也得到了保證。
  13. Not only can gain mismatch of the sigma - delta modulator be minimized, but the overload of the later stage sigma - delta modulator can also b e resolved without sacrificing the signal noise ratios ( snr ) of the over all system

    不僅可以減輕積分三角調變器不匹配之困擾,並且可以解決后積分三角調變器容易過負載之問題;然而,卻不會讓整體系統的訊號雜訊比( snr )降低。
  14. 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並不完全相同,即其譜不平坦,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。
  15. In this paper, through modeling and analyzing the non - continuities in the rf structures of twt, scattering parameter s11 is derived to represent the peak - peak values of the ripples of gain and phase - shift in traveling wave tubes, providing with some instructions for the controlling of the uniformity of gain and phase - shift in twts

    本文通過對具有高頻不連續性的行波管進行建模分析,用表徵不連續性的反射系數的幅度給出了行波管和相移峰峰值的量,對控制相位一致性行波管的不連續性提供了依據。
  16. This paper simulates the effect of voltage fluctuation inspection through the tool of matlab. and proves the filters ' s stability. in the part of self - checkout, pi ( proportional integral ) control arithmetic is put forward to check the gain k and the calculated results show the method ' s effectiveness. then many comparements toward pst are done in different realization methods such as different interpolation points classification number and sample frequency. though simulation and calculation we can see the designed flicermeter can meet our country ' s standands

    文中利用matlab對電壓波動的檢測效果進行了模擬;並對涉及到的濾波器的穩定性做了證明;在自校驗部分提出了將pi (比例、積分)演算法用於數字濾波器k值的確定,取得了不錯的效果;然後分別從取不同插值點、不同分數和不同采樣頻率這幾個方面出發,對計算出的p _ ( st )值進行了比較。
  17. 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;研究了新型的三段聯泵浦優配的摻鉺光纖放大器的優化光路結構,得到高,低噪聲,大輸出功率的摻鉺光纖放大器;最後研製成功高( 26db ) ,低噪聲( 5 . 3db ) ,大輸出功率( 17dbm ) ,寬帶( 31nm )箝制摻鉺光纖放大器樣機。
  18. 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,相對低的失調等性能,電流傳輸器的輸入和跨阻放大器中運算放大器輸入均採用折疊共源共柵放大器。
  19. In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems

    第二章討論了驅動場的相位漲落對開放的v型三能無反轉激光系統的影響,根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統、色散和粒子數差的影響,得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。
  20. 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,當然也影響了閉環的準確性。
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